the total resistance of the series circuit is 17 ohms what is the resistance of R2

Answer:

7.35 seconds

Explanation:

The computation of the time passed prior to the ball reached to the highest point is as follows;

As we know that the acceleration because of gravity on earth is 9.8 m/s

As the ball is thrown directly in an upward direction with a speed of 72 m/s

So, the time passed prior to the ball reached to the highest point is

= 72 ÷ 9.8

= 7.35 seconds

Hence, the above represents the answer

Answer:

if the switch is open the bulbs will be on

when one light burns out the rest stay on

parallel circuit allow the bulbs to maintain the brightness of a since cricuit

When one light burns out the rest stay on in parallel circuit.

Parallel circuits allow the bulbs to maintain the brightness of a single circuit.

Hence, option (d) and (F) are correct answer.

It is referred to as a series combination when two or more resistors are connected end to end in a row. Any number of resistances connected in series have a combined resistance that is equal to the sum of the individual resistances.

It is referred to as a parallel combination when two or more resistances are coupled between the same two sites. The sum of the reciprocals of all the individual resistances is equal to the reciprocal of the combined resistance of a number of resistances connected in parallel.

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Answer:

5.5 m/s^2

Explanation:

I believe this is the answer > using the formula a= v-v0/t

Hope this helps!

Answer:

-1 m/s²

Explanation:

Given:

Δx = 32 m

v₀ = 10 m/s

t = 4 s

Find: a

Δx = v₀ t + ½ at²

32 m = (10 m/s) (4 s) + ½ a (4 s)²

a = -1 m/s²

Answer:

A. They learn to differentiate self from non-self materials.

Explanation:

just got it right :)

Answer: some may argue that while teacher’s only provide service to a single classroom, superstar athletes are entertaining fans all around the world, enticing people with a feeling of relaxation and excitement. Obviously, what these individuals must not be aware of is the most important man in our nation, the president, who makes critical decisions that affect the entire world every day, only makes $400,000 a year. While President Obama is hard at work reviving the economy, the unproven rookie in the MLB is earning way over that figure. Furthermore, police officers, firefighters, and doctors save lives while risking their own for a fraction of what sports stars make. People in the military leave their families at home to defend and protect the country knowing they may never return. It's truly a pity that none of these true heroes are given the same recognition by society as athletes such as Brett Favre or Michael Jordan are given. While I do understand that making it into the pros is not an easy thing to do, and that it takes a tremendous number of hours of hard work and dedication every day to earn a job in professional sports, these people do nothing more than entertain the general public.

Explanation:

Answer:

Wouldn't it be great to make nearly $111 million a year simply to play a game? Tiger Woods, along with many other professional athletes, certainly think so. But do these athletes really deserve all that money?

In my mind, absolutely not. Professional athletes are making too much money in a society where salaries and wages are traditionally based on the value of one's work. In today's society, one should be paid according to the job’s economic importance and their value to society.

Teaching is one of the most economically important occupations because our future economy relies on the education of its youth, yet teachers are paid astronomically less than the average professional athlete is. In fact, each basket Kobe Bryant scores earns him equivalent to the average classroom teacher’s yearly salary.

However, some may argue that while teacher’s only provide service to a single classroom, superstar athletes are entertaining fans all around the world, enticing people with a feeling of relaxation and excitement.

Obviously, what these individuals must not be aware of is the most important man in our nation, the president, who makes critical decisions that affect the entire world every day, only makes $400,000 a year. While President Obama is hard at work reviving the economy, the unproven rookie in the MLB is earning way over that figure.

Furthermore, police officers, firefighters, and doctors save lives while risking their own for a fraction of what sports stars make. People in the military leave their families at home to defend and protect the country knowing they may never return. It's truly a pity that none of these true heroes are given the same recognition by society as athletes such as Brett Favre or Michael Jordan are given.

While I do understand that making it into the pros is not an easy thing to do, and that it takes a tremendous number of hours of hard work and dedication every day to earn a job in professional sports, these people do nothing more than entertain the general public.

Moreover, in my mind, if these athletes want to continue to be rewarded with the fame and fortune that is unfairly bestowed upon them, they must prove to the world that they are going to be positive role models for future athletes, and those who admire them.

Explanation:

found if off some website lol hope it helps! <3

The tension in the cable is 35400 N. To find the speed of the pulse, we can use the formula: speed = distance/time.

The distance traveled by the pulse is twice the length of the cable, since it travels the length of the cable and then returns. Therefore, the distance traveled is:

2 x 660 m = 1320 m

The time taken is given as 19 s. So, we can calculate the speed as:

speed = 1320 m/19 s = 69.47 m/s

To find the tension in the cable, we can use the formula:

tension = (mass x gravity) + (stress x area)

Since we do not know the mass of the cable, we can assume it to be negligible. The stress in the cable can be found using the formula:

stress = force/area

where force is the force applied to the cable, and area is the cross-sectional area of the cable. We can assume that the force applied is equal to the tension in the cable. The area can be found using the formula:

area = π x (diameter/2)^2

Substituting the values, we get:

area = π x (0.015/2)^2 = 1.77 x 10^-4 m^2

Now, we can find the stress as:

stress = tension/area

Substituting the value of stress as 2 x 10^11 N/m^2 (for steel cables), we can calculate the tension as:

tension = stress x area = 2 x 10^11 N/m^2 x 1.77 x 10^-4 m^2 = 35400 N

Therefore, the tension in the cable is 35400 N.

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The smallest particle size a scientist can observe using a scanning probe microscope would be a nanometer, therefore the correct answer is option B.

A recognized and accepted standard for measuring other amounts of the same sort is referred to as a unit of measurement. It is predetermined by custom or law.

As given in the problem, we have to find out what is the smallest particle size a scientist can observe using a scanning probe microscope.

1 millimeters = 1 × 10 ⁻³ meter

1 nanometer = 1 × 10⁻⁹  meters

Thus, the smallest particle size a scientist can observe using a scanning probe microscope would be a nanometer, therefore the correct answer is option B.

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The two ways that inertia affect the motions of the planets are:

B. It keeps the planets from flying off into space, out of the solar system.

C. It causes the planets to keep moving in the same direction as they did when they formed.

Inertia helps to keep planets in their orbits around the Sun, preventing them from flying off into space. As the planets move around the Sun, they are constantly pulled by the Sun's gravity towards the center of their orbit. However, due to their inertia, they continue to move forward, and the resulting combination of the inward pull of gravity and the outward motion due to inertia causes the planets to move in stable, elliptical orbits.

The planets formed from a cloud of gas and dust that was rotating in a particular direction. Due to the conservation of angular momentum, this rotation was transferred to the planets as they formed, causing them to continue to rotate in the same direction as they did when they formed. This is an example of how inertia affects the motion of the planets.

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The constant c relating the moment of inertia to the mass and radius (I) of the circular object is 0.00025 \(Nm^2/kg^2.\)

The constant c relating the moment of inertia to the mass and radius (I) of a circular object can be calculated using the following formula:

\(c = (G * m * r^2) / I\)

Where G is the gravitational constant, m is the mass of the object, r is the radius of the object, and I is the moment of inertia of the object.

In this case, the mass of the object is given as 10 kg, the radius is given as 0.5 m, and the translational velocity at the bottom is given as 7.0 m/s. To find the moment of inertia, we can use the formula:

\(I = (1/2) * m * r^2\)

Plugging in the given values, we get:

I = (1/2) * 10 kg * 0.5 \(m^2\)

I = 25 k\(g^2/\)\(m^2\)

Substituting this value of I into the formula for c, we get:

\(c = (G * 10 kg * 0.5 m^2) / 25 kg^2/m^2\)

\(c = (6.67 * 10^-11 Nm^2/kg^2 * 0.5 m^2) / 25 kg^2/m^2\)

\(c = 0.00025 Nm^2/kg^2\)

Therefore, the constant c relating the moment of inertia to the mass and radius (I) of the circular object is 0.00025 \(Nm^2/kg^2.\)

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Newton's third law states that if an object A exerts a force on object B, then object B must exert a force of equal magnitude and opposite direction back on object A.

Let:

A = Hammer

B = Nail

so:

Therefore:

The hammer exerts a force on the nail; the nail exerts a force on the hammer.

Answer:

i dont know about this

Explanation:

Answer:

Its either B or A

Explanation:

Answer:

Explanation:

Potential drop across R1, VR1

= Supply Voltage

= 24V

Well look at the diagram

We know

according to ohms law

\(\\ \rm\Rrightarrow \dfrac{V}{I}=R\)

\(\\ \rm\Rrightarrow \dfrac{V}{R}=I\)

Option C is correct

Answer:

the tension of the rope is 34.95 N

Explanation:

Given;

length of the rope, L = 3 m

mass of the rope, m = 0.105 kg

frequency of the wave, f = 40 Hz

wavelength of the wave, λ = 0.79 m

Let the tension of the rope = T

The speed of the wave is given as;

\(v = f\lambda = \sqrt{\frac{T}{\mu} } \\\\where;\\\\\mu \ is \ mass \ per \ unit \ length\\\\\mu = \frac{0.105}{3} = 0.035 \ kg/m\\\\v = f\lambda = 40 \times 0.79 = 31.6 \ m/s\\\\v = \sqrt{\frac{T}{\mu} } \\\\v^2 = \frac{T}{\mu} \\\\T = v^2 \mu\\\\T = (31.6^2)(0.035)\\\\T = 34.95 \ N\)

Therefore, the tension of the rope is 34.95 N

Answer:

5. 0.5 m/s

6. 2.06 m/s

7. 0.22 m

Explanation:

From the question given above, the following data were obtained:

Horizontal range (Rₓ) = 0.21 m

Time of flight (T) = 0.421 s

Time (t) to reach the top = 0.2105 s

5. Determination of the horizontal velocity of the ball.

Horizontal range (Rₓ) = 0.21 m

Time of flight (T) = 0.421 s

Horizontal velocity (vₓ) =?

Rₓ = vₓ × T

0.21 = vₓ × 0.421

Divide both side by 0.421

vₓ = 0.21 / 0.421

vₓ = 0.5 m/s

Thus, the horizontal velocity is 0.5 m/s.

6. Determination of the initial vertical velocity of the ball.

Time (t) to reach the top = 0.2105 s

Final vertical velocity (vբᵧ) = 0 m/s

Acceleration due to gravity (g) = 9.8 m/s²

Initial vertical velocity (vᵢᵧ) =?

vբᵧ = vᵢᵧ – gt (ball is going against gravity

0 = vᵢᵧ – (9.8 × 0.2105)

0 = vᵢᵧ – 2.06

Collect like terms

0 + 2.06 = vᵢᵧ

vᵢᵧ = 2.06 m/s

Thus, the initial vertical velocity of the ball is 2.06 m/s.

7. Determination of the maximum height reached by the ball.

Time (t) to reach the top = 0.2105 s

Acceleration due to gravity (g) = 9.8 m/s²

Maximum height (h) =?

h = ½gt²

h = ½ × 9.8 × 0.2105²

h = 4.9 × 0.2105²

h = 0.22 m

Thus, the maximum height reached by the ball is 0.22 m

The speed of the proton can be calculated as:v = p/m = (1.08 × 10⁻¹⁸ kg m/s)/(1.67 × 10⁻²⁷ kg) = 6.46 × 10⁸ m/s. So, the speed of the proton at 10 MeV is 6.46 × 10⁸ m/s.

Relationship between energy in joules versus eV. The relationship between energy in joules and electron volts (eV) is defined by the conversion factor 1 eV = 1.6 × 10⁻¹⁹ joules. This factor is used to convert energy measurements from one unit to the other. If a proton has an energy of 10 MeV, we can use this conversion factor to determine its energy in joules.10 MeV = 10 × 10⁶ eV = 1.6 × 10⁻¹⁹ J/eV × 10 × 10⁶ eV = 1.6 × 10⁻¹³ J. Speed of a proton at 10 MeV.

The speed of a proton at 10 MeV can be calculated using the relativistic equation: E² = (mc²)² + (pc)², where E is the energy of the proton, m is its mass, c is the speed of light, and p is the momentum of the proton. Let's assume that the mass of the proton is 1.67 × 10⁻²⁷ kg. Then, the momentum of the proton can be calculated as follows:p = √(E² - (mc²)²)/c = √((10 × 10⁶ eV)² - (1.67 × 10⁻²⁷ kg × (2.998 × 10⁸ m/s)²)²)/2.998 × 10⁸ m/s = 1.08 × 10⁻¹⁸ kg m/s. The speed of the proton can be calculated as:v = p/m = (1.08 × 10⁻¹⁸ kg m/s)/(1.67 × 10⁻²⁷ kg) = 6.46 × 10⁸ m/s. Therefore, the answer is 10 MeV is 6.46 × 10⁸ m/s.

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Tomography is a series of x-ray images made to show an organ in depth.

Tomography refers to a medical imaging technique that involves the acquisition of multiple x-ray images from different angles around the body.

These images are then processed by a computer to create detailed cross-sectional images of the organ or structure of interest.

The purpose of tomography is to provide a clearer and more detailed visualization of the internal structures within the body, particularly the organs.

By capturing images from various angles, tomography helps eliminate overlapping structures that can hinder accurate interpretation of traditional x-ray images.

One of the most common types of tomography is computed tomography (CT). CT scans utilize a rotating x-ray tube and detectors to capture multiple x-ray images as the patient moves through the scanner.

These images are processed by a computer to reconstruct detailed cross-sectional images, often referred to as slices or tomographic sections.

The resulting CT images provide a three-dimensional representation of the internal anatomy, allowing healthcare professionals to examine the organ in depth.

CT scans are widely used for diagnosing a variety of conditions, including injuries, tumors, infections, and vascular diseases. They provide valuable information about the size, shape, and density of the structures being imaged.

Other types of tomography include positron emission tomography (PET), single-photon emission computed tomography (SPECT), and magnetic resonance imaging (MRI).

Each of these techniques has its own specific principles and applications but shares the common goal of providing detailed and informative images of organs and structures within the body.

Overall, tomography, particularly CT, plays a vital role in modern medicine by enabling accurate diagnosis, treatment planning, and monitoring of various diseases and conditions.

Its ability to show organs in depth aids healthcare professionals in making informed decisions and providing optimal patient care.

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An example of a contractile source of motion restriction is the contraction of muscles in the human body.

Muscles in the human body play a crucial role in generating movement and controlling motion. Through the process of contraction, muscles have the ability to restrict or limit motion at specific joints, acting as a contractile source of motion restriction.

When muscles contract, they exert a pulling force on the bones they are connected to, resulting in movement at the joints. This contraction is achieved through the interaction of actin and myosin filaments within the muscle fibers. When a signal from the nervous system triggers muscle activation, calcium ions are released, allowing the actin and myosin filaments to slide past each other. This sliding motion generates force, causing the muscle fibers to shorten and contract.

By selectively contracting specific muscles, it is possible to restrict or limit motion at certain joints. For example, when you contract your bicep muscle, it restricts the motion at the elbow joint, causing the arm to bend. Similarly, when you contract your quadriceps muscles, they restrict the motion at the knee joint, allowing you to extend or straighten your leg.

In summary, the contraction of muscles serves as a contractile source of motion restriction. Through their ability to generate force and control joint movement, muscles play a crucial role in enabling and regulating various motions in the human body.

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As per the given scenario, Ram will cross the river first.

Ram chooses the quickest route and crosses the river without turning. Ram and Hari can both swim in still water at the same speed, hence their respective speeds when crossing the river will be equivalent. Ram will be able to get to the opposing bank the fastest as a result.

Hari, on the other hand, is swimming upstream at an angle and is being dragged downstream by the water.

Hari's overall travel distance will increase due to the downstream current, however his effective speed will drop in comparison to the other bank. Hari will therefore take longer than Ram to get to the opposing bank.

Thus, Ram will cross the river first in this scenario.

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Answer:

kinectic energy-in physics kinetic energy of an object is the energy that it possesses due to its motion

potential energy-in physics potential energy is the energy held by an object because of its position relative to other objects,its electric charge,or other factors

Answer:

Hey!

Well KINETIC ENERGY is...

the energy generated by the / of the object is that it possesses due to its motion...

POTENTIAL ENERGY is...

The energy held by an object because of its position relative to other objects,  its electric charge, or other factors...

Explanation:

So in easier terms, KINETIC ENERGY is just the ENERGY GENERATED BY THE OBJECT'S MOVEMENT and...

POTENTIAL ENERGY IS THE TOTAL AMOUNT OF ENRGY THAT THE OBJECT HOLDS (due to an electric charge etc)

Hope this helps!

The correct answer is: (a) An object gives another object an opposite charge without losing any of its own charge.

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Answer:

100°C

Explanation:

The heat gained by the ice equals the heat lost by the steam, so the total heat transfer equals 0.

Heat lost by the steam as it cools to 100°C:

q = mCΔT

q = (3 kg) (2.00 kJ/kg/K) (100°C − 120°C)

q = -120 kJ

Total heat so far is negative.

Heat lost by the steam as it condenses:

q = -mL

q = -(3 kg) (2256 kJ/kg)

q = -6768 kJ

Heat absorbed by the ice as it warms to 0°C:

q = mCΔT

q = (6 kg) (2.11 kJ/kg/K) (0°C − (-40°C))

q = 506.4 kJ

Heat absorbed by the ice as it melts:

q = mL

q = (6 kg) (335 kJ/kg)

q = 2010 kJ

Heat absorbed by the water as it warms to 100°C:

q = mCΔT

q = (6 kg) (4.18 kJ/kg/K) (100°C − 0°C)

q = 2508 kJ

The total heat absorbed by the ice by heating it to 100°C is 5024.4 kJ.

If the steam is fully condensed, it loses a total of -6888 kJ.

Therefore, the steam does not fully condense.  The equilibrium temperature is therefore 100°C

Answer:

-->Phytoplankton are AUTOTROPHS

--> Both the Salmon and the grizzly bears are CONSUMERS.

--> Grizzly bears are SECONDARY CONSUMERS.

Explanation:

In an ecosystem, which is the basic functioning unit of nature, the biotic components is made up of all the living organisms in it. These organisms are divided into two main groups which includes:

--> The AUTOTROPHS: These are organisms that are able to use sunlight or chemical energy to manufacture their own food from simple inorganic substances. Since Autotrophs are the only organisms that can produce food in an ecosystem, they are also known as PRIMARY PRODUCERS. Example of autotrophs includes Phytoplankton( all green plants).

-->HETEROTROPHS: These organisms cannot manufacture their own food rather they feed on ready-made food which comes from the tissues of organisms in their environment. In an ecosystem, Heterotrophs are known as the CONSUMERS. Example of Heterotrophs includes all animals (salmon and the grizzly bears).

These biotic components of the ecosystem forms a feeding pathway through which energy and nutrients are transferred step by step among organisms. This is called a FOOD CHAIN. This feeding pathway follows a certain pattern:

--> it begins with a primary producer (Phytoplankton)

--> the primary producer is eaten by a primary consumer (salmon)

--> the primary consumer is eaten by a secondary consumer (grizzly bears)

That is the reason both the Salmon and the grizzly bears are CONSUMERS but while salmon is a primary consumer, grizzly bears are SECONDARY consumers.

Answer:

correct answer below

Explanation:

Answer:

(a) halfway between the like poles of two magnets, because the field lines bend away and do not enter this area

Explanation:

Got it correct on the test.

Answer:

(a) halfway between the like poles of two magnets, because the field lines bend away and do not enter this area

Explanation:

If there is a 10-volt difference between a pair of two equipotential lines, the maximum separation between these lines on the x-axis would occur at the location where the electric field is the weakest or zero.

In the context of equipotential lines, the separation between the lines represents the strength of the electric field. The electric field is stronger where the equipotential lines are closer together and weaker or zero where they are farther apart.

Therefore, the maximum separation between the equipotential lines would be found at a location on the x-axis where the electric field is weakest or zero. This location corresponds to a point where the electric potential is constant and does not change significantly over a small distance.

To determine the exact position on the x-axis, specific information about the electric field distribution or the system's geometry would be required.

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If a vapor is placed at 0 Kelvin (-273.15°C or -459.67°F), it would undergo a process called "absolute zero." At this temperature, all molecular motion stops completely, and the vapor would condense into a solid or a liquid, depending on its nature.

What is Evaporation?

Evaporation is a process by which a liquid is transformed into a gas or vapor. This occurs when the temperature of a liquid is increased to a point where its vapor pressure becomes equal to or greater than the atmospheric pressure surrounding the liquid.

During evaporation, the molecules at the surface of the liquid gain enough energy to break the intermolecular forces that bind them to the rest of the liquid and become a gas. This process occurs at the surface of the liquid and gradually depletes the liquid of its molecules.

The specific phase that the vapor would condense into would depend on its properties such as its temperature, pressure, and intermolecular forces. For example, a vapor of water would condense into ice if the pressure is high enough, while a vapor of helium would condense into a liquid.

It is worth noting that reaching absolute zero is not physically possible, as it would require the complete removal of all thermal energy from a system, which violates the third law of thermodynamics.

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Answer:

It would lift the object to the same height than before you move it 3 centimeters to the left. You see, the height doesn't change if you move the inclined plane horizontally, because height is a vertical variable.

Therefore, if the inclined plane has a height of 1 meters, then the object will be lifted 1 meters up, no matter if you move the inclined plane 50 meters horizontally, it won't change its height.

The stream of water will take 0.546 seconds to strike a wall which is 6.25 m away horizontally.

Given: The angle of the stream, θ = 40.0°

The initial velocity of the stream, v = 15 m/s

The horizontal distance of the wall, x = 6.25 m

We need to calculate the time taken by the stream to strike the wall horizontally.

Initially, let's find the horizontal and vertical component of the velocity of the stream of water.

Horizontal component of the velocity, vₓ = v cos θ = 15 cos 40° = 11.46 m/s

Vertical component of the velocity, vᵧ = v sin θ = 15 sin 40° = 9.64 m/s

Let's use the equation of motion to find the time taken by the stream to strike the wall horizontally.

s = ut + 1/2 at²

Here, u = 11.46 m/s (initial velocity in the horizontal direction), t = ?, a = 0 (acceleration in the horizontal direction), s = 6.25 m

Using the above values in the equation of motion, we get:

6.25 = 11.46t + 0.5 × 0 × t²

6.25 = 11.46t

Solving for t, we get: t = 6.25 / 11.46t = 0.546 s

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A diagram or pictorial representation that organizes the depiction of data or values is known as a graph.  

Thus, The relationships between two or more items are frequently represented by the points on a graph.  Here, for instance, we can plot a graph showing the type and quantity of school supplies used by pupils in a class based on the data provided below.

A non-linear data structure made up of vertices and edges is called a graph.

In a graph, the edges are the lines or arcs that link any two nodes, while the vertices are occasionally also referred to as nodes. A graph is more precisely made up of a collection of vertices (V) and a set of edges (E). The graph's symbol is G(E, V).

Thus, A diagram or pictorial representation that organizes the depiction of data or values is known as a graph.  

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