12,727 Answered Questions for the topic physics

Physics

12/09/22

potential energy/ momentum
A rotating space station is said to create "artificial gravity"—a loosely-defined term used for an acceleration that would be crudely similar to gravity. The outer wall of the rotating space... more
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Physics

12/09/22

potential energy/ momentum

A man does 4,550 J of work in the process of pushing his 2.60  103 kg truck from rest to a speed of v, over a distance of 27.0 m. Neglecting friction between truck and road, determine the... more
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Physics

12/09/22

physics question

A roller-coaster car has a mass of 494 kg when fully loaded with passengers.(a) If the vehicle has a speed of 20.7 m/s at point A, what is the force in Newtons exerted by the track on the car at... more
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Physics

12/09/22

Physics question
An amusement park ride consists of a large vertical cylinder that spins around its axis fast enough such that any person inside is held up against the wall when the floor drops away. The... more
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Physics

12/09/22

Physics question

Tarzan (m = 85.0 kg) tries to cross a river by swinging from a vine. The vine is 12.0 m long, and his speed at the bottom of the swing (as he just clears the water) will be 8.50 m/s. Tarzan doesn't... more
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Physics

12/08/22

Potential energy, momentum
As shown in the figure below, a 2.25 kg block is released from rest on a ramp of height h.When the block is released, it slides without friction to the bottom of the ramp and then continues across... more
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Physics

12/08/22

Increasing temperature increases the resistance due to increase in movement of electrons right? In a conductor through which current flows.
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Physics

12/08/22

Advanced E&M Physics questions
A sphere with radius R centered at the origin is made out of a linear dielectric material, with electric susceptibility Xe = 2, and has a uniform (free) surface charge density, of, on its surface.... more
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Physics

12/08/22

E&M-Advanced Physics Question
A Helmholtz coil is a pair of circular wire loops that produce a uniform magnetic field in the center. Consider two circular loops of wire with radius R, with each loop centered on the z - axis (at... more
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Physics

12/07/22

Regular Physics Question: Superposition Principle
Hi, I have been given this problem to solve in Physics class regarding the Superposition Principle and Coulombs' Law. If someone could walk me through step by step how to solve this problem, that... more
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Physics

12/07/22

A wildlife researcher is tracking a flock of geese. The geese fly 5.0 km due west, then turn toward the north by 30 ∘ and fly another 5.0 km .
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Physics

12/07/22

potential energy, momentum
An object of mass 0.93 kg is initially at rest. When a force acts on it for 2.9 ms it acquires a speed of 17.6 m/s. Find the magnitude (in N) of the average force acting on the object during... more
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Physics

12/07/22

potential energy, momentum
Suppose a soccer player kicks the ball from a distance of 30 m toward the goal. Find the initial speed of the ball if it just passes over the goal, 2.4 m above the ground, given the initial... more
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Physics

12/07/22

potential energy, momentum
A basketball player is running at 4.60 m/s directly toward the basket when he jumps into the air to dunk the ball. He maintains his horizontal velocity.What vertical velocity (in m/s) does he need... more
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Physics

12/07/22

potential energy, momentum
Two carts mounted on an air track are moving toward one another. Cart 1 has a speed of 0.9 m/s and a mass of 0.46 kg. Cart 2 has a mass of 0.75 kg. If the total momentum of the system is to be... more
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Physics

12/07/22

Potential energy momentum
A 0.950 kg hammer is moving horizontally at 4.50 m/s when it strikes a nail and comes to rest after driving it 1.00 cm into a board.Calculate the duration of the impact in seconds. (Enter a... more
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Physics

12/07/22

Circular motion question
A 76-kg pilot at an airshow performs a loop de loop with his plane. At the bottom of the 52-m radius loop, the plane is moving at 48 m/s. Determine the net force acting upon the pilot.
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Physics

12/07/22

Circular motion question
A 76-kg pilot at an airshow performs a loop de loop with his plane. At the bottom of the 52-m radius loop, the plane is moving at 48 m/s. Determine the net force acting upon the pilot.
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Physics

12/07/22

Circular motion question
A 76-kg pilot at an airshow performs a loop de loop with his plane. At the bottom of the 52-m radius loop, the plane is moving at 48 m/s. Determine the net force acting upon the pilot.
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Physics

12/07/22

KINEMATICS AND DYNAMICS OF CIRCULAR MOTION
A 76-kg pilot at an airshow performs a loop de loop with his plane. At the bottom of the 52-m radius loop, the plane is moving at 48 m/s. Determine the net force acting upon the pilot.
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Physics

12/06/22

Which of the following could give rise to the Doppler Effect?

Which of the following could give rise to the Doppler Effect?A. Either the source of sound and/or the listener is/are moving.B. Both the source of sound and the listener must be moving.C. The... more
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Physics

12/06/22

Force on a Cube
A cube of brass has a shear force of 1100 N acting on it. This causes the cube to deform through an angle of 0.04 degrees. What is the length of one of the cube's sides?
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Physics

12/06/22

Which of the following could give rise to the Doppler Effect?
Which of the following could give rise to the Doppler Effect?A. Either the source of sound and/or the listener is/are moving.B. Both the source of sound and the listener must be moving.C. The... more
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Physics

12/06/22

Which of the following describes the Mach number?
Which of the following describes the Mach number? vobject [(vobject)/(vsound)] [(vsound)/(vobject)] vsound
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12/05/22

What would happen if LTP was the only type of plasticity that can occur in the brain?
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