A brick has a mass of 3 kg on the Earth. If the acceleration due to gravity on Jupiter is 2.5 times that of the Earth. What is the
weight of the brick on Jupiter in Newtons?
0 9.8
2.25
22.05
32.2
O 73.5

Answer:

d = 1.51 x 10⁻⁵ m = 15.1 μm

Explanation:

We will use young's Double Slit formula here:

\(Y = \frac{\lambda L}{d}\\\\d = \frac{\lambda L}{Y}\)

where,

d = width of strand = ?

λ = wavelength = 631.8 nm = 6.318 x 10⁻⁷ m

L = Screen to hair distance = 1.2 m

Y = fringe spacing = 5.02 cm = 0.0502 m

Therefore,

\(d = \frac{(6.318\ x\ 10^{-7}\ m)(1.2\ m)}{0.0502\ m}\)

d = 1.51 x 10⁻⁵ m = 15.1 μm

The neighbour weighs Iron. As he is a blacksmith, iron is the only thing he weighs the whole day.

A riddle is a statement, question or phrase having a double or veiled meaning, put forth as a puzzle to be solved.

If Robert, your neighbor, a forty-five-year-old blacksmith is seven feet tall, and eats all day long, based on these statements, we can explain the riddle as Robert weighs iron for the fact that he  is a blacksmith, iron is the only thing he weighs the whole day.

Thus, the correct explanation for the riddle is " The neighbour weighs Iron. As he is a blacksmith, iron is the only thing he weighs the whole day.

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The angle measure of angle B = 25° and angle C = 65° and angle D = 25°.

The given parameters are;

The orientation of the two mirrors = At right angle to each other

The laser light is directed at one of the mirror

The measure of angle, A = 25°

The measures of angle B, C, and D are found as follows;

We have;

∠A = ∠B = 25°, by angle of incidence equals angle of reflection

∠B = 25°

∠B + ∠C = 90° by sum of the acute angles of a right triangle

25° + ∠C = 90°

∴ ∠C = 90° - 25° = 65°

∠C = 65°

∠E = ∠C = 65° by angle of incidence equals angle of reflection

∴ ∠E = 65°

Line 'L' is perpendicular to the second mirror, therefore, the angle between line 'L' and the second mirror = 90° = ∠E + ∠D

∠E + ∠D = 90°,  by angle sum property

Therefore;

65° + ∠D = 90°

∴ ∠D = 90° - 65° = 25°

∠D = 25°

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Answer:

The formula for potential energy depends on the force acting on the two objects.

a) Amplitude A of oscillation for the oscillating mass = 0.46 m

b) Period of the oscillation for the oscillating mass is 0.52 s

c) Spring constant k is 34.56 N/m

d) The mass's position is zero after oscillating for half a time.

e) Time, it takes the mass to get to the position x= - 0.10 m is 0.1125 s.

The mass attached to the spring is 0.24 kg.

The simple harmonic motion of the mass is given as x = (0.46 m) [cos(12 rad/s)t]

The general equation of x(t) is known to be,

x(t) = A cos ωt

where,

A is amplitude

ω is angular frequency

t is time

Following that, let's compare the presented equation to the general equation:

(a) The amplitude of oscillation:

A = 0.46 m

(b) The period of oscillation is,

T = 2π √(m/k) = 2π √(0.24/34.56) = 2π √(0.0069) = 2π ×0.08 = 0.52 s

(c) Spring constant k is given by,

ω = √(k/m)

ω² = k/m

So, k = m ω² = 0.24 × 12² = 34.56 N/m

(d) After one half of the period, position is

x(t) = 0.46 cos(π/2) = 0.

(e) Time required at x = - 0.10 m

-0.10 = 0.46 cos 12t

cos 12t = -0.217

12t = cos⁻¹(-0.217)

t = 1.35/12 = 0.1125 s

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Answer:

The strength of the magnetic field created by current is:

B=μ₀I / 2 π R

where I is the current

R is the shortest distance to the wire

The constant μ₀ is 4π * 10^-7 T * m / s

Explanation:

Answer:

probably won't help now but the answer is the 4th one lol

Explanation:

Children who play violent video games will display higher levels of aggression than children who do not play violent video games.

A hypothesis is a proposed explanation or prediction for a phenomenon or set of observations that can be tested through further investigation. It is an educated guess or a tentative answer to a research question, based on prior knowledge or theory. Hypotheses are often stated in an "if-then" format, where the researcher predicts that if a particular cause or condition is present, then a certain effect or outcome will result. Hypotheses are an important part of the scientific method and guide the design of research studies, as they help researchers to focus their research questions, select appropriate methods, and interpret their findings.

Here,

Research question: Does playing violent video games increase aggression in children?

Hypothesis: Children who play violent video games will display higher levels of aggression than children who do not play violent video games.

Research design: Experimental design

Participants: Children between the ages of 10 and 12 years old.

Sampling method: Random sampling of participants from local schools.

Variables:

Independent variable: Exposure to violent video games (participants will be randomly assigned to either a violent video game or non-violent video game condition).

Dependent variable: Aggressive behavior (measured by observing participants during a frustrating task, such as completing a difficult puzzle).

Control variables:

Gender of participants

Age of participants

Previous exposure to violent video games

Procedure:

Participants will be randomly assigned to either a violent or non-violent video game condition.

Participants will play the video game for 20 minutes.

After playing the game, participants will be asked to complete a frustrating task, such as completing a difficult puzzle.

Aggressive behavior will be measured by observing how the participants respond to the frustrating task. The number of aggressive behaviors (e.g. hitting the table, throwing the puzzle) will be recorded.

Data will be analyzed using statistical techniques to determine if there is a significant difference in aggression between the two groups.

Ethical considerations:

Informed consent will be obtained from parents/guardians before the study.

Participants will be debriefed after the study and given the option to withdraw their data.

The study will be conducted in a safe and secure environment.

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In order to measure the angle of incidence and the angle of refraction using Tracker's protractor tool (the green angle in the video frame), the following steps should be followed:

Step 1: Open the video in Tracker software.

Step 2: Click on the "Measure" button on the toolbar at the top of the software.

Step 3: From the dropdown menu, select "Angle".

Step 4: Click on the "protractor tool" icon (the green angle in the video frame).

Step 5: Position the vertex of the protractor exactly at the origin of the coordinate axis and move the arms of the protractor so that one arm is on the vertical axis (above or below, as appropriate) and the other on the light ray.

Step 6: Measure the angle of incidence and the angle of refraction for the frame numbers specified in the table below by using the step buttons on the right to advance the video a frame at a time.

Step 7: Record the measured angles in the table below. Note that the angle of incidence should be measured on the incident ray (the ray that is coming from the left), and the angle of refraction should be measured on the refracted ray (the ray that is coming from the right).In conclusion, by following these steps, one can measure the angle of incidence and the angle of refraction using Tracker's protractor tool.

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Answer:

Explanation:

que paso cuz

Answer:

Question 5: The period of the waves is the time it takes for one complete up-and-down cycle of the boat.

In this case, the boat bobs up and down 10 times in 8 seconds.

Therefore, the time it takes for one up-and-down cycle is:

8 seconds ÷ 10 cycles = 0.8 seconds

So the period of the waves is 0.8 seconds.

`````````````````````````````````````````````````````````````````````````````````````````````````````

Question 6 : The frequency of the waves is the number of complete up-and-down cycles per unit time, typically measured in Hertz (Hz).

In this case, the boat bobs up and down 10 times in 19 seconds.

Therefore, the frequency of the waves is:

Frequency = Number of cycles ÷ Time

Frequency = 10 cycles ÷ 19 seconds

Frequency ≈ 0.526 Hz

So the frequency of the waves is approximately 0.526 Hz.

Answer:True. The number of calories in a food is a measure of how much potential energy that food possesses.

Explanation:

The resultant of the displacement is 336.5m

The process of splitting a vector into its components is called resolution of the vector. The vectors are splitted into vertical and horizontal component.

For the first displacement;

The vertical component = - 150 sin45 = -106.1 m

The horizontal component = - 150 cos 45° = -106.1 m

For the second displacement;

The vertical displacement = - 85sin90 = -85

The horizontal component = 0

For the third displacement;

The vertical displacement = 550 sin55 = 450.5

The horizontal displacement = 550 cos 55 = 315.5

Sum of vertical component = 450.5-85-106.1 = 263.4

sum of horizontal component = 315.5 -106.1 = 209.4

Using Pythagorean theorem

R = √ 263.4² + 209.4²

R = √113227.92

R = 336.5m

The resultant angle = tan^-1( 263.4/209.4)

= tan^-1(1.26)

= 51.56°

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Answer:

MRBEAST-

Explanation:

Answer:

MRBEAST

Explanation:

MRBEAST

1) The force acting on the object during the time interval 0-3 seconds is 1/3 N.

2) The force acting on the object during the time interval 6-10 seconds is -0.5 N.

3) There is no time interval in which no force acts on the object.

(i) Force acting on the object in time interval 0-3 seconds. Force acting on the object is equal to the product of its mass and acceleration, i.e.,F = ma.

In the given velocity-time graph, the acceleration of the object can be determined by determining the slope of the velocity-time graph from 0 to 3 seconds.

Slope = (change in velocity) / (change in time)= (20-0) / (3-0) = 20/3 m/s^2

Acceleration, a = slope= 20/3 m/s^2

Mass of the object, m = 50 g = 0.05 kg

∴ Force acting on the object, F = ma= 0.05 × 20/3= 1/3 N.

Therefore, the force acting on the object during the time interval 0-3 seconds is 1/3 N.

(ii) Force acting on the object in time interval 6-10 seconds. Similar to the first question, the force acting on the object in time interval 6-10 seconds can be determined by determining the acceleration of the object during this time interval.

The slope of the velocity-time graph from 6 seconds to 10 seconds can be determined as follows:

Slope = (change in velocity) / (change in time)= (-20-20) / (10-6) = -40/4= -10 m/s^2 (negative sign indicates that the object is decelerating)

Mass of the object, m = 50 g = 0.05 kg

∴ Force acting on the object, F = ma= 0.05 × (-10)= -0.5 N.

Therefore, the force acting on the object during the time interval 6-10 seconds is -0.5 N.

(iii) Time interval in which no force acts on the object. There is no time interval in which no force acts on the object. This is because, as per Newton's first law of motion, an object will continue to remain in a state of rest or uniform motion along a straight line unless acted upon by an external unbalanced force.In other words, if the object is moving with a constant velocity, there must be a force acting on the object to maintain its motion.

Therefore, there is no time interval in which no force acts on the object.

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The value of the inductance, in , microhenrys of Tarik's solenoid is approximately 1.6239 microhenrys.

To calculate the inductance of a solenoid, we can use the formula:

L = (μ₀ * N² * A) / l

where L is the inductance, μ₀ is the permeability of free space (4π × 10⁻⁷ T·m/A), N is the number of turns, A is the cross-sectional area of the solenoid, and l is the length of the solenoid.

In this case, we have:

N = 175 turns

Diameter = 8.05 mm = 0.00805 m (converted to meters)

Radius = Diameter / 2 = 0.00805 m / 2 = 0.004025 m

Length (l) = 2.37 cm = 0.0237 m (converted to meters)

First, let's find the cross-sectional area (A) using the formula for the area of a circle:

A = π * r² = π * (0.004025 m)² ≈ 5.08398 × 10⁻⁵ m²

Now we can plug in the values into the formula for inductance:

L = (4π × 10⁻⁷ T·m/A * (175)² * 5.08398 × 10⁻⁵ m²) / 0.0237 m

L ≈ (1.2566 × 10⁻⁶ * 30625 * 5.08398 × 10⁻⁵) / 0.0237

L ≈ (38.5086 × 10⁻⁶) / 0.0237

L ≈ 1.6239 × 10⁻⁶ H

Now, let's convert the inductance from henrys to microhenrys:

L ≈ 1.6239 × 10⁻⁶ H * 10⁶ μH/H ≈ 1.6239 μH

So the inductance of Tarik's solenoid is approximately 1.6239 microhenrys.

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Answer:

the conclusion is that the plant that had been given fertilizer B grew more than the plant with fertilizer A and the plant without fertilizer. so in conclusion fertilizer B is better for growing plants fastly.

the problem is that you noticed your tomatoes were not growing properly.

Hope this helps!❤

Answer:Newton’s law also states that larger bodies with heavier masses exert more gravitational pull, which is why those who walked on the much smaller moon experienced a sense of weightlessness, as it had a smaller gravitational pull. To help explain his theories of gravity and motion, Newton helped create a new, specialized form of mathematics.

Explanation:Here I dont know

Answer:

500 g

Explanation:

m = Mass of water

c = Specific heat of water = \(1\ \text{cal/g}^{\circ}\text{C}\)

\(\Delta T\) = Temperature difference = \(100-20=80^{\circ}\text{C}\)

Q = Heat added = 40000 cal

Heat is given by

\(Q=mc\Delta T\\\Rightarrow m=\dfrac{Q}{c\Delta T}\\\Rightarrow m=\dfrac{40000}{1\times 80}\\\Rightarrow m=500\ \text{g}\)

The mass of water is 500 g.

The diameter of the smaller end of the pipe is approximately 0.78 meters.

To determine the diameter of the smaller end of the pipe, we can use the principle of conservation of mass. According to this principle, the mass flow rate of water should remain constant throughout the pipe.

The mass flow rate is given by the equation:
Mass flow rate = density of water * cross-sectional area * velocity

Since the density of the water remains constant, we can write:
Cross-sectional area1 * velocity1 = Cross-sectional area2 * velocity2

Given that the velocity1 is 13 m/s, the diameter1 is 1.2 m, and the velocity2 is 30 m/s, we can solve for the diameter2 using the equation:
(pi * (diameter1/2)^2) * velocity1 = (pi * (diameter2/2)^2) * velocity2

Simplifying the equation:
(1.2/2)^2 * 13 = (diameter2/2)^2 * 30

Calculating the equation:
(0.6)^2 * 13 = (diameter2/2)^2 * 30

0.36 * 13 = (diameter2/2)^2 * 30

4.68 = (diameter2/2)^2 * 30

Dividing both sides by 30:
0.156 = (diameter2/2)^2

Taking the square root of both sides:
0.39 = diameter2/2

Multiplying both sides by 2:
0.78 = diameter2

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Answer:

convection is the answer

The process that describes the warm ocean that transfers heat to the air above it is known as Convection. Thus, the correct option for this question is B.

Some characteristics of heat are as follows:

The process of convection transfers heat with the help of the migration of a fluid (liquid or gas) between areas of different temperatures. It is an approach that signifies the transfer of heat between two bodies by involving currents of moving gas or fluid.

Therefore, convection is the process that describes the warm ocean that transfers heat to the air above it. Thus, the correct option for this question is B.

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Mechanical energy → Electrical energy → Thermal energy

What is mechanical energy?

Mechanical energy is the energy possessed by an object due to its motion or position. It is the sum of kinetic energy and potential energy of an object, which can be converted to other forms of energy, such as electrical energy or thermal energy.

What is electrical energy?

Electrical energy is the energy associated with the movement of electrons through a conductor or an electrical circuit. It is the result of the movement of charged particles, such as electrons, and is commonly generated by the conversion of other forms of energy, such as mechanical, chemical, or solar energy.

What is thermal energy?

Thermal energy is the energy associated with the temperature of an object or a system. It is the result of the movement of atoms and molecules in matter, which leads to the transfer of heat from hotter to cooler objects. Thermal energy is commonly measured in units of joules or calories and is proportional to the mass and temperature of an object or a system.

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Answer:

The Answer is C.

Explanation:

Both Eddie and Val are correct because chemical energy is a type of potential energy and mechanical energy includes kinetic energy.

This is defined as the capacity and ability to do work. Potential energy is a type of energy by virtue of its position and chemical energy falls under this category.

Kinetic energy on the other hand is the energy by virtue of movement or motion and mechanical energy falls under this too thereby making option C most appropriate.

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Answer:

Cumulus, Stratus, and Cirrus. There are three main cloud types.

Explanation:

hopes it help^_^

As the rope becomes shorter, the length of the rope is  decreased and the centripetal force decreases according causing the ball to move in smaller circles.

The centripetal force is defined as the force that keeps an object moving in a circular path. Also, the centripetal force is equal to the tension in the rope and the tension in the rope depends on the length of the rope.

As the rope shortens, the tension in the rope decreases and the centripetal force on the ball decreases hence the ball moves in smaller and smaller circles, the ball goes around with a shorter and shorter period.

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