Which explains how lightning is formed?
A two objects with the same electric charge rub together
B electrons flow through a conductor
C raindrops conduct electricity from clouds to the ground
D two objects with different electric charges rub together

When a car has double the speed of the truck

Momentum is calculated by multiplying the mass by the velocity. And we have masses of 1000 kg and 2000 kg and to make the momentum equal velocity needs to be inversely proportional.

Let the velocity of the car be x m/s

momentum (p) = mass * velocity

then momentum is 1000*x

1000x kgm/s

So lets the velocity of the truck be y m/s

the momentum of the truck will be 2000*y

so 2000y kgm/s

by the condition 1000x = 2000y

so on solving

x= y/2

which shows the car has double the velocity of the truck.

So we can conclude to greater momentum we need either velocity or mass needs to be greater or both can be also large to get higher momentum.

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When, During the game, the ball experiences a net force of 0 newtons. It is sitting still is the statement explains what is most likely happening with the ball.

The vector sum of the various or single forces exerted on a particle or object is termed as the net force. The original force's affect on the motion of the particle the force is exerted is replaced by the net force, which is a single force.

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The horizontal displacement of a projectile can be found using the equation for displacement with a constant acceleration of zero: = .

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When the displacement of a 500 g mass, undergoing simple harmonic motion, is defined by the function :  x=-3.5sin(π/2t+(5π)/4).The maximum potential energy is 7.56J

Simple harmonic motion, or SHM, is a particular form of periodic motion of a body that results from a dynamic equilibrium between an inertial force that is proportional to the body's acceleration away from the static equilibrium position and a restoring force on the moving object which is directly proportional to the magnitude of the object's displacement and applies towards the object's equilibrium position.

Given :

k = 1.234N/m

x=3.5

Now by applying the value of spring constant, we can find the maximum potential energy.

PE=[tex]\frac{1}{2} kx^{2}[/tex]

PE=1/2*1.234*3.5^2

PE=7.56J

Hence, The maximum potential energy is 7.56J

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The complete question is :

The displacement of a 500 g mass, undergoing simple harmonic motion, is defined by the function :

x=-3.5sin(π/2t+(5π)/4)

Find maximum potential energy.

The object is traveling at 10 m/s.

Momentum is defined as the product of an object's mass and velocity. The formula for momentum is:

p=mv

where,

p = momentum

m = mass

v =  velocity

We can use this formula to find the velocity of an object given its momentum and mass. To solve for velocity, we can divide both sides of the equation by mass:

velocity = momentum/mass

In this case, the object has a mass of 40 kg and a momentum of 400 Kgm/s, so we can plug in these values to find the velocity:

velocity = 400 Kgm/s / 40 kg = 10 m/s

Therefore, the object is traveling at 10 m/s.

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The amount of work done by a box that is pushed 9 meters across a horizontal floor by a force of 3000N is 27000J.

Work in physics refers to the measure of energy expended in moving an object; most commonly, force times distance.

It is said that no work is done if the object does not move. The work done on an object can be calculated by multiplying the force of the object by its distance as follows:

W = F × d

W = 3000N × 9m

Work done = 27,000J

Therefore, 27,000Joules is the work done on the box.

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the net impulse that acted on the ball =500 N.s if 100 kg ball is initially traveling at 10 m/s. If the ball experiences a constant external force that increases the ba velocity to 15 m/s .

The normal force acts in a direction normal to the surface interaction between objects. Friction is a force that opposes motion on surfaces. Other examples of non-fundamental forces include the elastic force, tension, and frame-dependent forces .

to make someone do something that they do not want to do, for example by using or threatening to use violence. force someone to do something: He claims that police officers forced him to sign a confession.

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Yes, Captain America will survive.

The distance the Hulk takes to stop the alien is 87.9 m.

The distance travelled by the Hulk is calculated by applying the principle of work-energy theorem.

Work done by Hulk = Kinetic energy of the alien

Fd = K.E

Fd = ¹/₂mv²

where;

d = ( mv² ) / ( 2F )

The distance travelled by Hulk is calculated as;

d = ( 6.32 x 10⁴ x 26² ) / ( 2 x 2.43 x 10⁵ )

d = 87.9 m

Hence, Captain America will survive since the distance travelled by Hulk  when he is pushing the alien back is 87.9 m, which is less than 100 m where Captain America is.

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The speed of the penny after 2.5 seconds is 25 m/s. The result is obtained by using the equation in uniformly accelerated straight motion.

A uniformly accelerated straight motion is a motion of an object moving with acceleration or deceleration in a straight line.

The equations apply in vertical dimension are

v₁ = v₀ + gt

v₁² = v₀² + 2gh

h = v₀t + ½ gt²

Where

A penny is dropped off the top of the Statue of Liberty, 93 m tall.

Find the speed of the penny after 2.5 second! (assuming no air resistance)

A dropping off penny has an initial speed of 0.

v₁ = 0

We used g = 10 m/s.

So, the speed at time t = 2.5 s would be

v₁ = v₀ + gt

v₁ = 0 + 10(2.5)

v₁ = 25 m/s

Hence, after 2.5 seconds, the penny will have the speed of 25 m/s.

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With the use of formulas, For the first question, W = 22.8 J, Time = 1.43 s. For the second question, W = 1000000J, P = 534,522.48 Watts

Power can simply be defined as the rate at which work is done. It is measured in Watt.

Given that a delivery man lifts a package with a 12 N force at a constant velocity. If the package is lifted from the ground to the mailbox 1.9 m and the delivery man exerts 16 W of power, then

a.  the work done W = F × S

W = 12 × 1.9

W = 22.8 J

b. The time taken to lift it can be found by using power formula

P = W/t

16 = 22.8/t

t = 22.8/16

t = 1.43 s

Given that a  2800 kg car exerts a constant force of 20,000 N while traveling across 50 m. Assume the car starts from rest.

a. Work W done by the car = F × S

W = 20000 × 50

W = 1,000,000 J

b. To know how much power is exerted by the car, let us first find the speed of the car.

K.E = Work

1/2mv² = F × S

1/2 × 2800 × v² = 1000000

1400v² = 1000000

v² = 1000000/1400

v² = 714.28

v = √714.28

v = 26.7 m/s

Power P = F × V

P = 20000 × 26.73

P = 534,522.48 Watt

Therefore, the power exerted by the car is 534,522.48 Watts

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D. 36 in Kr

Let's analyze all the elements in Option

By looking at all the given options we can clearly see that Krypton has the highest number of electrons as compared to the given options so It is the answer. Also with the highest mass, in the given four options.

It can be easily seen in options as the Number of electrons and mass is already written in options.

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The 3.0 kg mass is moving at a speed of 8.0 m/s after the collision, and its velocity creates a 35° angle with the pos x axis.

In a collision, two forces with opposite directions and equal magnitudes act on each object, accelerating them simultaneously. Each object feels the same acceleration in collisions with objects of equal mass.

A collision occurs when both the vertical and horizontal edges cross. When comparing the right and left sides of two objects, we determine that whether right side of both the second object is stronger than that of the left side that of the first, and vice versa for something like the vertical axis.

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The amount of charge given that the energy transferred is 5.25 kilojoules and the voltage is 15 volts will be 0.35 coulombs.

Charge is a property of matter that describes the amount of electrical energy in a substance. It can be positive or negative, and it is measured in units called coulombs. Objects with the same charge will repel each other, while objects with different charges will attract each other. This is the basis of Coulomb's Law and for how electricity works.

The charge, measured in coulombs (C), can be calculated by using the formula:

charge = energy transferred / voltage

charge = 5.25 kJ / 15 V

charge =  0.35 C

Therefore the charge will be 0.35 coulombs.

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slope is zero therefore velocity will be 0 at B to C .

energy the top states in the nation for nuclear power electricity production is North Carolina. The contributions of natural gas-fired energy over the previous ten years.

nuclear energy Nuclear energy contributed for 33% of North Carolina's net generation in 2021, placing the state in the top five states for production. North Carolina was one of the top ten states in 2020 for both total annual motor fuel spending and petroleum consumption.

one of the main ways to produce energy is through the combustion of natural gas. Describe it in detail.Sunlight is the principal energy source on Earth's surface and can.As the effects of global warming worsen, North Carolina must go nuclear. Nuclear energy will become the best solution for clean, dependable, and economical electricity, and recent state legislation compels Duke Energy to dramatically cut carbon emissions by 2030.

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In trial 1, the speed of the center of mass does not change, while in trial 2, the speed of the center of mass decreases.

In trial 1, the carts collide elastically, which means that the total kinetic energy of the system is conserved during the collision. The two carts will bounce off each other with the same kinetic energy that they had before the collision. Since the center of mass is a point of reference for the total kinetic energy of a system, and its speed is related to its kinetic energy, the speed of the center of mass does not change during the collision. The final kinetic energy of the two-cart system after the collision is the same as the initial kinetic energy. The two carts will move away from each other with the same speed they had before the collision.

In trial 2, the collision is inelastic, which means that some of the kinetic energy is converted into internal energy, this causes the total kinetic energy of the two-cart system to decrease. Since the center of mass is a point of reference for the total kinetic energy of a system, and speed is related to kinetic energy, the decrease in total kinetic energy causes a decrease in the speed of the center of mass. As the carts stick together after the collision, the final speed of the two-cart system is lower than the initial speed. The final speed of the two-cart system after the collision is slower than the initial speed of the first cart.

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Your question seems to be incomplete, but I assume the question was:

"In trial 1 of an experiment, a cart moves with speed v0 on a frictionless, horizontal track and collides elastically with another cart that is initially at rest. In trial 2, the setup is identical except that the carts stick together during the collision. How does the speed of the two-cart system's center of mass change, if at all, during the collision in each trial?"

Answer:

A. The shorter a wire is, the lower resistance it will have.

The force with which the planet is attracted to the 10 kg object is calculated to be 4 N.

Given that,

Mass of object = 10 kg

Gravitational field strength = 4 N/kg

Now, let us determine with what force the planet is attracted to the 10 kg object,

Mathematically, the force with respect to the gravitational field strength is given by the formula,

Force = mass × gravitational field strength

Force = 10 × 4

Force = 40 newton

We can conclude that the force with which the planet is attracted to the 10 kg object is 4 Newton.

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The tangent component, as it always pulls the bob in the direction of equilibrium (and is not balanced by the tension from the pendulum arm).

Another mechanical mechanism that oscillates is the straightforward pendulum. It consists of a point mass "m" hung from a fixed support by a light, inextensible string of length L. The gravitational force is what causes the motion to move in a vertical plane.

The length and gravitational acceleration of a basic pendulum are the only factors that govern its period. Other elements, such mass, have no effect on the time at all.

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Some general tips for creating graphs include:

1. Choose the type of graph that best illustrates your data.

2. Organize your data in a way that makes sense and is easy to read.

3. Label your graph clearly so readers can understand what the graph is trying to convey.

4. Use colors and symbols to make the graph more visually appealing.

5. Use a grid to ensure that the graph lines are straight and even.

6. Double-check your graph to make sure all of the data is accurate.

What is graph?

Graph is a pictorial representation of data or information. It is a way of visually displaying data points in a way that is easy to understand and interpret. By using graphs, we can compare different sets of data, identify relationships between different data points, and easily spot trends and patterns.

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Impulse is important because it is the force that changes an object's momentum.

Momentum is a physical concept that describes the movement of an object due to the product of its mass and velocity. Momentum is a vector quantity, meaning it has both a magnitude and a direction. In classical mechanics, momentum is conserved, meaning that the total momentum of a system remains constant over time.

In the examples given, impulse is what allows the elevator to be hoisted up, the nylon ropes to hold a climber's weight, the runner to move around the track, and the plane to take off from the runway. Without impulse, none of these activities would be possible.

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The wave property this padding is taking advantage is reflection, because reflected waves have a higher intensity.

option B is the correct answer.

The reflection of a wave occurs when a travelling hits a hard surface and it is directed backwards.

Also, the reflection of a wave is a process by which a wave, whether light, sound, infrared, or radio waves, hits an object and bounces off it.

An example of reflection of wave is echo.

An echo is a sound caused by the reflection of sound waves from a surface back to the listener.

Thus, to reduce the echo of a sound wave, the school cafeteria had thick padding installed along the walls and portions of the ceiling.

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Answer:

should be false (F)

you don't have to, but I'd like brainliest if you can.

Explanation:

The Earth's gravitational pull on the satellite is 651.8 N. Consequently, the satellite's gravitational pull on Earth is 651.8 N. As a result, the spacecraft accelerates at a rate of 1.5 m/s2.

Centripetal force is used to maintain an object moving in a circle due to gravity. Since gravity always behaves perpendicular to motion, it has no effect on an item in a circular orbit.

Mass of Telescope= 8410 kg

revolution in minutes = 927

G = 6.67 × 10-11 N ∙ m2/kg2

Mass of earth = 6.0 × 1024 kg

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The energy that makes up a system's temperature, or thermal energy, is said to be present in the system.The required thermal energy is 2360J.

The energy that makes up a system's temperature, or thermal energy, is said to be present in the system.

Thermal energy is emitted as heat.Thermodynamics, a distinct field of physics, examines how work is accomplished via the transmission of heat between various systems (see the first law of thermodynamics).

Mass of aluminum  = 25g

Melting point  = 658°C

Latent heat of melting  = 94.4j/g

Unknown:

Amount of heat require for melting = ?

The amount of heat required for this melting will be the product of the mass of the aluminum and the latent heat of melting;

H = m L

m is the mass

L is the latent heat of melting

insert the parameters and solve;

H = 25 x 94.4 = 2360J

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The velocity of the air flow at point (1) is 13.8 m/sec.  The gravitational potential energy is increasing from point(1) to point(2) by 94.176 joules. The pressure head increased by 1.7 m of air column. Kinetic energy head is decreased by 9.71 m of air column.  

Datum head at point (1), z₁ = 2 m

Datum head at point (2), z₂ = 10 m

Pressure at point(1) p₁ = 0 kpa

Pressure at point(2) p₂ = 20 N/m²

Velocity at point(2) v₂ = 0

Velocity at point(1) v₁ = ?

The density of air, ρ = 1.2 kg/m³

By applying Bernoulli's equation,

z₁ + p₁/ρg + v₁²/2g = z₂ + p₂/ρg + v₂²/2g

2 + 0 + v₁²/2g = 10 + 20/(1.2×9.81) + 0

v₁²/2g = 10 + 1.7 - 2

v₁² = 9.7×2×9.81

v₁² = 190.314

v₁ = 13.8 m/sec

Change in gravitational potential energy(ρgΔh) =  1.2×9.81×(10-2)

= 94.176 Joules

Increase in the pressure head = p₂/ρg - p₁/ρg

= 1.7 - 0

= 1.7 m (of air column)

Change in the kinetic energy head = v₂²/2g - v₁²/2g

= 0 - v₁²/2g

= - (13.8×13.8)/(2×9.81)

= -9.71 m (of air column)

Negative sign indicates that the kinetic energy head is decreasing.

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The work done during the process is  506.2 J.

The work done during the process is calculated by applying the following equation.

W = PΔV

W = P ( Vf - Vi )

where;

The final volume of the system is calculated as follows;

Vf = A x h

Vf = 7.4 x 10⁻³ m² x 7.2 x 10⁻² m

Vf = 5.33 x 10⁻⁴ m³

W = 9.5 x 10⁵ Pa x ( 5.33 x 10⁻⁴ m³ - 0 )

W = 506.2 J

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Answer:

Light energy is a kind of kinetic energy with the ability to make types of light visible to human eyes. Light is defined as a form of electromagnetic radiation emitted by hot objects like lasers, bulbs, and the sun.