Remy noticed that after oiling his skateboard wheels, it was easier to reach the speeds he needed to perform tricks. How did the oil help? A. The oil reduced friction between the moving parts of the skateboard. B. The oil increased friction between the moving parts of the skateboard. C. The oil reduced friction between the skateboard wheels and the ground. D. The oil increased friction between the skateboard wheels and the ground.
Answers
Answer:
The oil reduced friction between the moving parts of the skateboard. ( A )
Explanation:
The oil reduced Friction between the moving parts of the skateboard and this is because the reduction in friction between moving parts causes an increase in speed.
Remy will oil the moving parts that connects the wheels of the skateboard to the Board, because this is where the most friction is found. the friction between the wheels and the ground cannot be affected by oiling the wheels
Related Questions
a what type of contact is used with the High pressure switch?
Answers
Of the following statements about the open-circuit characteristic (OCC), short-circuit characteristic (SCC) and short-circuit ratio (SCR) of synchronous generator, ( ) is wrong. A. The OCC is a saturation curve while the SCC is linear. B. In a short-circuit test for SCC, the core of synchronous generator is highly saturated so that the short-circuit current is very small. C. The air-gap line refers to the OCC with ignorance of the saturation. D. A large SCR is preferred for a design of synchronous generator in pursuit of high voltage stability.
Answers
In a short-circuit test for SCC, the core of synchronous generator is highly saturated so that the short-circuit current is very small.
Which statement about the open-circuit characteristic (OCC), short-circuit characteristic (SCC), and short-circuit ratio (SCR) of a synchronous generator is incorrect?
The statement B is incorrect because in a short-circuit test for the short-circuit characteristic (SCC) of a synchronous generator, the core is not highly saturated.
In fact, during the short-circuit test, the synchronous generator is operated at a very low excitation level, which means the field current is reduced to minimize the generator's voltage output.
This low excitation level ensures that the short-circuit current is sufficiently high for accurate measurement and testing purposes.
During the short-circuit test, the synchronous generator is connected to a short circuit, causing a large current to flow through the generator.
The purpose of this test is to determine the relationship between the generator's terminal voltage and the short-circuit current.
By varying the excitation level and measuring the resulting short-circuit current and voltage, the short-circuit characteristic (SCC) can be obtained.
In contrast, the open-circuit characteristic (OCC) of a synchronous generator represents the relationship between the generator's terminal voltage and the field current when there is no load connected to the generator.
Therefore, statement B is incorrect because the core is not highly saturated during the short-circuit test; it is operated at a low excitation level to allow for accurate measurements of the short-circuit current.
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Technician A says that most air brake system safety pop-off valves trip open at 150 psi. Technician B says that a safety pop-off valve should be fitted to the system supply tank. Who is correct?
Answers
Based on the given explanation, it can be stated that both technicians are correct.
How to explain
Technician A is accurate in stating that most air brake system safety pop-off valves are designed to trip open at around 150 psi. These valves are essential for maintaining safe pressure levels within the air brake system and preventing excessive pressure buildup.
Technician B is also correct in recommending that a safety pop-off valve should be fitted to the system supply tank. This valve helps protect the entire system by releasing excess pressure in case of a malfunction or over-pressurization, reducing the risk of damage or accidents.
Therefore, both technicians provide accurate information regarding the function and installation of safety pop-off valves in an air brake system.
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1. Discuss the benefits of observing good safety measures in relation to an increase in
productivity within a pharmaceutical laboratory
Answers
The benefits of observing good safety measures in relation to an increase in productivity within a pharmaceutical laboratory is that:
It prevent the loss of chemicals due to spillage and others,It prevent the lab staff from getting hurt or injured as a result of mishap, etc.What are the benefits of practicing safety in the laboratory?A laboratory is known to be one that is known to have a lot of potential risks that is said to often arise due to a person's exposure to chemicals that are corrosive and toxic, flammable solvents, high pressure gases and others.
So, A little care and working in line to all the prescribed safety guidelines will help a person to be able to avoid laboratory mishaps.
Therefore, the act of adhering to all these policies helps a lot of employees to hinder the spills of chemicals and other kinds of accidents, as well as reduce the damage to the environment that is outside of the lab.
Hence, The benefits of observing good safety measures in relation to an increase in productivity within a pharmaceutical laboratory is that:
It prevent the loss of chemicals due to spillage and others,It prevent the lab staff from getting hurt or injured as a result of mishap, etc.Learn more about safety measures from
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a) Water strider bug is supported on surface of the pond by surface tension acting along interface between water and bug's legs. Determine the minimum length of this interface needed to support the bug let the weight of the bug is 10−4 N
b) Repeat part (a) if surface tension were to support aperson weighing 750N.
Answers
Is the impedance of the capacitor purely reactive, and how does it compare to the nominal value of the ideal capacitor? Why or why not is it purely reactive?
Answers
In an electric field, a capacitor is a device that stores electrical energy. It has two terminals and is a passive electrical component. Capacitance refers to a capacitor's effect.
What is the impedance of an ideal capacitor?An perfect capacitor has an infinite resistance. For all frequencies and capacitance levels, the reactance of a perfect capacitor, and consequently its impedance, is negative.A capacitor that has no resistance and therefore doesn't lose any energy while it's operating is the ideal capacitor. It just possesses capacitance. There is no dielectric loss in a perfect capacitor. High temperature stability characterizes the ideal capacitor.As capacitance and frequency increase, capacitive reactance falls. Impedance is the complete opposition that reactance and resistance give.Similar to inductors, the ideal capacitor is a totally reactive device with no resistive (power dissipative) effects whatsoever. Of course, nothing is so flawless in the actual world. Capacitors, however, have the advantage of often being more pure reactive componentsTo learn more about Ideal capacitor refer to:
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There are two types of LEDs (Light Emitting Diodes) that can produce yellow light. One manufacturer offers an LED that emits only yellow light of wavelength 590 nm. Another manufacturer offers a unit that is actually two LEDs, one that emits red light with a wavelength of 630 nm, the other emits green light with a 540 nm wavelength. The yellow light from both LEDs looks identical when shined on a wall.
Suppose that each type of LED was used to shine light through a diffraction grating. In each case, there will be a pattern that appears on the screen. Describe the differences (if any) between those patterns as completely as you can.
Answers
Answer:
The light from the first LED will appear as yellow while the light from the second LED won't appear as Yellow light when passed through a diffraction grating
Explanation:
There are two types of LED's
First LED emits only yellow light with wavelength of 590 nm
Second LED : emits red light with wavelength of 630 nm and emits green light with a 540 nm wavelength
The second LED produces a yellow light because of the mixture of red and green lights
therefore when the light from the SECOND LED is passed through a diffraction grating, the light is split into its components ( i,e green and red lights ) this is because the lights are not on the same wavelength
1. If everyone agreed to take the ethical point of view by respecting others and their core values, would there be any need for a rigorous study of ethics?
2. If you had to choose only one of the ethical theories presented in this chapter and use it for all your personal ethical decision making, which theory would you choose? Why? How would you respond to the arguments raised against the theory you have chosen?
3. Why do businesses and governments often use utilitarian thinking to determine the proper course of action?
Answers
1. Yes, there would still be a need for a rigorous study of ethics. Even if everyone agreed to take the ethical point of view, there would still be difficult ethical dilemmas and decisions to make.
What is the ethical ?Ethics is a set of moral principles or values that guide an individual or a group in determining what is right and wrong. It is a set of values that help dictate how people should behave in various situations. Ethics can be used to refer to a system of moral principles or values, or to the study of such principles or values.
2. I would choose the utilitarianism theory for my personal ethical decision making. Utilitarianism is a consequentialist theory, which means it assesses the consequences of a particular action in order to determine the ethicality of the action.
3. Businesses and governments often use utilitarian thinking to determine the proper course of action because it is an effective way to maximize the benefits to the greatest number of people. Utilitarianism can help businesses and governments make decisions that will benefit the most people in the most effective way.
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match the architectural construction method with its description: - load-bearing - post-and-lintel - arch - steel frame a. a horizontal beam rests on top of two vertical supporting beams b. curvature spanning an opening with weight distributed downward c. piling of building material d. support at outer edges; allowed development of the skyscraper
Answers
a. Post-and-lintel: A horizontal beam rests on top of two vertical supporting beams. b. Arch: Curvature spanning an opening with weight distributed downward. c. Load-bearing: Piling of building material. d. Steel frame: Support at outer edges; allowed development of the skyscraper.
a. Load-bearing
The load-bearing construction method involves the horizontal beam (load) resting on top of two vertical supporting beams.
Load-bearing construction is a method where the vertical structural elements, such as walls or columns, bear the weight of the building's structure and transfer it to the foundation. The load is distributed vertically, allowing for the use of horizontal beams to support additional floors or roof structures.
b. Post-and-lintel
The post-and-lintel construction method describes a horizontal beam (lintel) that spans an opening, with weight distributed downward.
Post-and-lintel construction is one of the oldest methods used to create architectural openings, such as doors and windows. It involves placing vertical posts or columns (supports) and horizontal beams (lintels) across the top to carry the weight of the structure above.
c. Arch
The arch construction method involves a curvature spanning an opening with weight distributed downward.
The arch is a curved structural element that transfers the load it carries along its curve to the supports, which are typically vertical columns or piers. This method allows for the creation of large, open spaces with minimal need for additional supports.
d. Steel frame
The steel frame construction method provides support at outer edges and allowed for the development of skyscrapers.
Steel frame construction utilizes steel columns and beams as the primary structural elements. Steel's strength and flexibility make it ideal for constructing tall buildings, as it provides the necessary support and stability while allowing for efficient use of space.
By utilizing these various construction methods, architects and engineers can design and build structures that cater to specific requirements, whether it's load-bearing walls, expansive open spaces created by arches, or the vertical development made possible by steel frames. Each method offers unique advantages in terms of structural integrity, design possibilities, and spatial utilization.
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what is the connector called on a network cable that connects to an ethernet port
Answers
The connector on a network cable that connects to an Ethernet port is called an RJ45 connector.
An RJ45 connector is a type of connector commonly used for Ethernet networking. It has eight pins and is designed to plug into an Ethernet port on a computer, router, or other network device. The RJ45 connector is used to transmit data over twisted pair cables, which are commonly used for Ethernet networks. It is a standardized connector that ensures compatibility between different devices and cables. RJ45 connectors are also used in other types of networks, such as telephone and broadband networks.
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what is the risk value of a risk whose impact score is 5, whose probability score is 5 and whose detection score is 1?
Answers
The risk value of a risk whose impact score is 5, with a probability score is 5. The detection score is 25. The correct option is D.
What is the risk?The analysis's output, the risk score, is produced by dividing the Risk Impact Rating by the Risk Probability. It's the quantitative statistic that enables important individuals to decide about risks swiftly and with confidence.
Risk = probability x loss
The probability is 5
The impact score is 5
substituting the values in the equation
Risk = 5 x 5 = 25
Therefore, the correct option is D. 25.
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The question is incomplete. Your most probably complete question is given below:
A. 5
B. 1
C. 10
D. 25
What is the aim of reviewing a research paper?
Answers
Answer:
Purpose of review papers
They carefully identify and synthesize relevant literature to evaluate a specific research question, substantive domain, theoretical approach, or methodology and thereby provide readers with a state-of-the-art understanding of the research topic.
Of the following, which is not a consideration that must be addressed in determining inspection intervals for AST's?
A) Corrosion prevention systems
B) Inspection Interval of other equipment located near the tank under consideration
C) Changes in service(Including changes in water bottoms)
D) Previous inspection results
Answers
Answer:
B) Inspection Interval of other equipment located near the tank under consideration is not a consideration that must be addressed in determining inspection intervals for AST's.
Explanation:
A masonry chimney should be braced with horizontal metal straps every few feet against the structure and into reinforced points such as wall studs to stabilize the chimney from the shaking force of an earthquake.
a. True
b. False
Answers
Answer: True
Explanation:
The statement that "a masonry chimney should be braced with horizontal metal straps every few feet against the structure and into reinforced points such as wall studs to stabilize the chimney from the shaking force of an earthquake" is true.
In a scenario whereby the chimney isn't braced with the horizontal metal straps every few feet, this can lead to its collapse in case of an earthquake. Therefore, the correct option is "true".
2. In a certain group of people, it was found that 42% of them have alcoholic fathers, 8% of them have alcoholic mothers, and 48% of them have at least one alcoholic parent. If we randomly choose one individual from this group, what is the probability that: (a) the selected individual has two alcoholic parents? (b) the selected individual has an alcoholic mother but he/she does not have an alcoholic father? (c) the selected individual has an alcoholic mother, if he/she has an alcoholic father? (d) the selected individual has an alcoholic mother, if he/she does not have an alcoholic father?
Answers
(a) Probability that the selected individual has two alcoholic parents:
From the given data, 48% of the group has at least one alcoholic parent. Therefore, the remaining percentage (100% - 48% = 52%) represents the portion of the group without any alcoholic parents. Since having two alcoholic parents means not having a non-alcoholic parent, the probability can be calculated as: 52% * 52% = 0.52 * 0.52 = 0.2704, or 27.04%.
(b) Probability that the selected individual has an alcoholic mother but not an alcoholic father:
From the given data, 8% of the group has an alcoholic mother. To calculate the probability of not having an alcoholic father, we subtract the percentage of individuals with both alcoholic parents (42%) from the percentage of individuals with at least one alcoholic parent (48%): 48% - 42% = 6%. Therefore, the probability can be calculated as: 8% * 6% = 0.08 * 0.06 = 0.0048, or 0.48%.
(c) Probability that the selected individual has an alcoholic mother, given that they have an alcoholic father:
From the given data, 42% of the group has an alcoholic father. To calculate the probability, we need to determine the percentage of individuals with both alcoholic parents (which we calculated in part (a) as 27.04%) and divide it by the percentage of individuals with an alcoholic father (42%): 27.04% / 42% ≈ 0.6448, or 64.48%.
(d) Probability that the selected individual has an alcoholic mother, given that they do not have an alcoholic father:
From the given data, we can determine that the percentage of individuals without an alcoholic father is 100% - 42% = 58%. To calculate the probability, we need to determine the percentage of individuals with an alcoholic mother but not an alcoholic father. We calculated this in part (b) as 0.48%. Therefore, the probability can be calculated as: 0.48% / 58% ≈ 0.0083, or 0.83%.
Note: The probabilities have been rounded to two decimal places for ease of reading.
We have (a) Probability of the selected individual has two alcoholic parents: P(Two alcoholic parents) = P(Alcoholic fathers) + P(Alcoholic mothers) - P(Alcoholic fathers and mothers) = 0.42 + 0.08 - 0.48 = 0.02.
Probability of the selected individual has an alcoholic mother but he/she does not have an alcoholic father: P(Alcoholic mother and not alcoholic father) = P(Alcoholic mothers) - P(Alcoholic fathers and mothers) = 0.08 - 0.48 = -0.4 < 0. But, probability cannot be negative. Therefore, the probability is 0. Hence, the required probability is 0.
Probability of the selected individual has an alcoholic mother, given he/she has an alcoholic father: P(Alcoholic mother | alcoholic father) = P(Alcoholic mothers and fathers) / P(Alcoholic fathers) = 0.48 / 0.42 = 1.14. But, probability cannot be greater than 1. Therefore, the probability is 1. Hence, the required probability is 1.(d) Probability of the selected individual has an alcoholic mother.
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A circuit has two resistors in parallel, each resistor is 6 ohms. This circuit is connected to a single resistor of 6 ohms, to form a series-parallel circuit. What is the total resistance of the circuit?
Answers
The tatal resistance of the series-parallel circuit with two resistor connected in parallel which combination is connected in series to a single resistor is 9 ohms.
What is a resistance?
This can be defined as the opposition to current flow in a circuit.
To calculate the total resistance, first we need to find the total resistance of the parallel resistor.
For parallel,
R' = (R₁R₂)/(R₁+R₂)............Equation 1Where:
R' = Total resistance of the parallel resistor.
From the question,
Given:
R₁ = 6 ohmsR₂ = 6 ohmsSubstitute these values into equation 1
R' = (6×6)(6+6)R' = 3 ohms.Finally, we combine the effective parallel resistance in series to the single resistance to the the total resistance of the circuit.
Rt = R'+R₃.................. Equation 2Where:
Rt = Total resistance of the circuit.From the question,
R' = 3 ohmsR₃ = 6 ohmsSubstitute these values into equation 2
Rt = 3+6Rt = 9 ohms.Hence, the total resistance of the circuit is 9 ohms.
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Justify the claim that metabolic pathways evolved on Earth by connecting environmental changes that occurred to their development.
a. The earliest pathways that developed on Earth were aerobic because the primitive atmosphere did not have oxygen. These pathways were used by primitive Archaebacteria. Over time, photosynthesis developed, which led to increased oxygen in the atmosphere. This allowed anaerobic cellular respiration.
b. The earliest pathways that developed on Earth were anaerobic because the primitive atmosphere didn't have oxygen. These pathways were used by primitive prokaryotic microorganisms. Over time, photosynthesis developed, which led to increased oxygen in the atmosphere. This allowed aerobic cellular respiration.
c. The earliest pathways that developed on Earth were anaerobic because the primitive atmosphere had oxygen. These pathways were used by primitive prokaryotic microorganisms. Over time, organisms carrying out fermentation stabilized oxygen levels in the atmosphere. This allowed aerobic cellular respiration.
d. The earliest pathways that developed on Earth were anaerobic because the primitive atmosphere didn't have oxygen. These pathways were used by primitive prokaryotic microorganisms. Over time, the respiration of Eubacteria and Archaebacteria led to increased oxygen in the atmosphere. This allowed aerobic cellular respiration.
Answers
The development of metabolic pathways on Earth can be linked to environmental changes that occurred over time. The earliest pathways were anaerobic because the primitive atmosphere did not have oxygen, and they were used by primitive prokaryotic microorganisms. As photosynthesis developed, it led to an increase in oxygen in the atmosphere, which allowed for the development of aerobic cellular respiration.
Option B is the most accurate answer as it reflects the earliest pathways being anaerobic and the development of aerobic pathways due to the increase of oxygen in the atmosphere over time. The evolution of metabolic pathways on Earth is a result of environmental changes and adaptation by organisms to these changes.
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A rain gutter is to be constructed from a metal sheet of width 3m by bending up one-third of the sheet on each side through an angle θ. How should θ be chosen so that the gutter will carry the maximum amount of water?.
Answers
The area of the gutter is therefore equal to the area of the rectangle plus the area of the triangles.
A = rectangle + 2 * triangle
= 10h + 2 * (1/2 hw)
Using trig work out h and w.
h = 10 sin ?
w = 10 cos ?
A = 10h + hw
= 100sin? + 100sin?cos?
Differentiate the expression (either use the product rule for sin? cos?, or write 100sin?cos? as 50sin2? using the double angle formula)
A = 100sin? + 50sin2?
dA/dt = 100cos? + 100cos2?
For A to be a max or min the derivative must equal zero
100cos? + 100cos2? = 0
cos? + cos2? = 0
Use the double angle formula to write cos2? as 2cos^2 ? - 1
cos? + 2cos^2 ? - 1 = 0
2cos^2 ? + cos? - 1 = 0
This quadratic factorizes:
(2cos? - 1)(cos? + 1) = 0
This means that
cos ? = 1/2 or cos ? = 1
giving:
? = pi/3 or ? = pi
Which means that to achieve the maximum area ? should be pi/3 = 60 degrees
You can check that this is the max by substituting in these values of theta and the two end points (theta = 0, theta = pi), and seeing that pi/3 gives the maximum.
The maximum area is therefore
A = 100sin? + 100sin?cos?
= 100sin(pi/3) + 100sin(pi/3)cos(pi/3)
= 100 sqrt(3) / 2 + 100 sqrt(3)/2 * 1/2
= 100 * 3/2 * sqrt(3) / 2
= 3 * 25 * sqrt(3)
= 75 sqrt(3)
= 129.9...
= 130 cm^3
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Complete the sentence using the correct term.
are made without yeast and are often savory or sweet.
Answers
Answer:
Quick Breads
Explanation:
I think this is correct. I am not for sure i just looked it up and it says word for word that this is the answer.
Answer:
Quick Breads
Explanation:
I got it right on my Plato test
Which statement about the seal between the respirator and the wearer's face is true?
POSSIBLE ANSWERS:
Negative pressure respirators prevent ambient air from entering the mask.
Cosmetic surgery can be completed without a re-evaluation of respirator fit.
Positive pressure respirators tighten the face mask when the wearer inhales.
Facial hair can prevent a respirator from properly sealing to the wearer’s face.
Answers
A true statement about the seal between the respirator and the wearer's face is: D. facial hair can prevent a respirator from properly sealing to the wearer’s face.
What is a respirator?A respirator can be defined as a personal protective equipment that is typically worn over the face to protect the mouth and nose, while protecting the wearer from inhaling smoke, dust, or other toxic chemical substances.
In this context, a true statement about the seal between the respirator and the wearer's face is that facial hair has the ability to prevent a respirator from properly sealing to the wearer’s face.
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Alternating current lesson 4 exam
Answers
List five areas that increased energy prices impact.
Answers
Answer:
Supply, demand, global markets, imports and exports, and government Regulation.
Explanation:
EMISSIONS ASSESSMENT
What is the best recommendation you can make to your
customers to prevent emissions systems failure?
Running only ethanol-free gas in their vehicle
Wait until the gas light comes one before filling the car up
Regular maintenance of the fuel and emissions system
Regularly grease tie rod ends
Select Submit
Answers
Answer:
The best recommendation to prevent emissions systems failure is to regularly maintain the fuel and emissions system.
Explanation:
64º26’18’’ + 195º57’12,75’’ – 100º55’35’’
Answers
Answer:
I can help you with your calculation.
To add and subtract angles in degrees, minutes, seconds (DMS) form, you need to follow these steps12:
Align the angles so that the degrees, minutes, and seconds are in the same column.
Add or subtract the seconds first. If the result is more than 60 or less than 0, adjust the minutes accordingly.
Add or subtract the minutes next. If the result is more than 60 or less than 0, adjust the degrees accordingly.
Add or subtract the degrees last.
Using this method, your calculation can be done as follows:
64º26’18’’ + 195º57’12,75’’ – 100º55’35’’ = 64º26’18’’ + 195º57’12.75’’ – 100º55’35’’ = 159º83’30.75’’ – 100º55’35’’ = 159º83’(30.75 - 35)’’ – 100º55’0’’ = 159º82’55.75’’ – 100º55’0’’ = 159º(82 - 55)’55.75’’ – 100º0’0’’ = 159º27’55.75’’ – 100º0’0’’ = (159 - 100)º27’55.75’’ = 59º27’55.75’’
Therefore, the answer is 59º27’55.75’’. I hope this helps!
Explanation:
Where would an engineer indicate the unit of measurement used in a design
Answers
An engineer would indicate the unit of measurement used in a design in millimeters.
What are measurements?The primary unit of measurement is the stocking unit of measure for a given item in a specific organization. You must define an item attribute that serves as the primary unit of measurement when creating each item.
Because the technical drawings are scaled, engineers, architects, and builders may create the items according to exact specifications.
When understanding scales, the number on the left relates to the measurement of the drawing, while the number on the right represents the actual size of the object.
Therefore, a millimeter is used in a design.
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what type of device is used on a distribution transformer to protect the transformer from voltage spikes
Answers
Medium Voltage Circuit Breaker
Usually, medium voltage circuit breaker is to protect the transformer from voltage spikes on a distribution transformer.
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Large electrical currents are often carried in aluminum conductors. Consider a long, 2-cm-diameter cable covered by insulation 2 mm thick. For a particular application, the outside insulation temperature is limited to 35 °C, and none of the insulation can exceed 50 °C. The cable is in an environment in which the convective heat transfer coefficient is 25 W/m^2.K, the air temperature is 24°C, the insulation thermal conductivity is 0.10 W/m·K, and the electrical resistance per unit length of the wire is 3.9 x 10^-4 Ω/m. Determine the maximum current allowed (in A).
Answers
The maximum current allowed in the long, 2-cm-diameter cable covered by insulation 2 mm thick is approximately 1300 A. To determine the maximum current allowed, we need to consider the heat generated by the electrical current and its effect on the insulation temperature.
The heat generated per unit length of the wire can be calculated using the formula: \(heat = I^2 R\), where I is the current and R is the electrical resistance per unit length. In this case,\(heat = (I^2) (3.9 \times 10^{-4} \Omega/m)\). The heat generated must be dissipated through convection from the cable's surface. The rate of heat dissipation can be calculated using the formula: \(Q = hA(T_s - T_a)\), where Q is the heat dissipation rate, h is the convective heat transfer coefficient, A is the surface area of the cable, Ts is the surface temperature of the insulation, and Ta is the air temperature.
By equating the heat generated to the heat dissipation rate, we can solve for the maximum current allowed. Considering the cable's diameter and insulation thickness, we can calculate the surface area of the cable. By substituting the given values, including the temperature limits, we find that the maximum current allowed is approximately 1300 A.
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A particular brand of paint covers 340 square feet per gallon . Write a program in C++ to determine and report approximately how many gallons of paint will be needed to paint two coats on a wooden fence that is 6 feet high and 100 feet long .
Answers
Answer:
#include <iostream>
using namespace std;
// named constant to give mnemonic name to "magic number"
const float SqFtPerGal = 350.0f;
// the function main() is always the entry point of the application
int main()
{
float length, width, area, paint; // to hold user values and results
// prompt user for length and width of wall
cout << "Enter length of wall : " << flush;
cin >> length;
cout << "Enter width of wall : " << flush;
cin >> width;
// calculate area and amount of paint needed
area = length * width;
paint = area / SqFtPerGal;
// output results with reasonable text
cout << "You need " << paint << " gallons of paint to cover "
<< area << " square feet of wall." << endl;
// program stops executing when it returns from main(), 0 means O.K.
return 0;
}
Explanation:
4 pts a student cannot open a door at her school. she pushes with ever-greater force, and still the door will not budge! knowing that the door does push open, is not locked, and a minimum torque is required to open the door, give a few reasons why this might be occurring.
Answers
There are several reasons why a student may not be able to open a door even when pushing with ever-greater force. Some possible reasons include:
Friction: There may be high levels of friction between the door and the floor or the door and the doorframe. This friction can make it difficult to overcome the static friction force required to initiate motion.Weight of the door: If the door is very heavy, it may require a lot of force to overcome the inertia and get it moving.Misalignment: The door and/or the doorframe may be misaligned, preventing the door from opening smoothly.Air pressure: In some cases, air pressure can make it difficult to open a door, particularly if the building is sealed or pressurized in some way.Minimum torque required: As mentioned in the problem statement, a minimum torque may be required to open the door, which could make it difficult for someone with limited strength to open the door.In general, the reasons why a door might be difficult to open can be quite complex, and often require a careful inspection of the door and its surrounding environment to diagnose the problem.
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pls help me it’s due today
Answers
Answer:
C. 14.55
Explanation:
12 x 10 = 120
120 divded by 10 is 12
so now we do the left side
7 x 3 = 21 divded by 10 is 2
so now we have 14
and the remaning area is 0.55
so 14.55