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These questions are to be answered with a short paragraph. You will be graded on the physics content of your answer as well as on its structure and conciseness. Remember, as with everything, neatness counts. 1. An object is thrown at an angle of 600 above the horizontal. Before it hits the ground, does its velocity become zero anywhere? If yes, where; if not, why not?
A cook puts 8.80 g of water in a 2.00-L pressure cooker that is then warmed to 480°C. What is the pressure inside the container
A ray of light is incident from the air onto the surface of a diamond (n=2.42) at a 30 degree angle to the normal, calculate the speed of light in the diamond
A square coil of side 5.48-cm in an ac generator rotates at 50.0 Hz and develops an emf of 225V (rms). If the coil contains 805 turns, find the magnitude of the magnetic field in which it rotates.
What is the sound intensity level at a distance of 1.0 km? Express your answer to two significant figures and include the appropriate units.
In the amusement park ride known as Magic Mountain Superman, powerful magnets accelerate a car and its riders from rest to 56 m/s (around 130 mi/h) in a time of 7.2 s
a boy of mass 46.2 kg is initially on a skateboard of mass 2.00 kg moving at a speed of 10.2 ms. the boy falls off the
An ?-particle has a charge of +2e and a mass of 6.64 × 10-27 kg. It is accelerated from rest through a potential difference that has a value of 1.75 × 106 V, what are the radius of its circular path
The Gravitron is an amusement park ride in which riders stand against the inner wall of a large spinning steel cylinder. At some point, What is the maximum rotational speed at which the riders will not slide up the walls of the ride
A 42.0-kg boy, riding a 1.50-kg skateboard at a velocity of 5.50m/s across a level sidewalk, jumps forward to leap over a wall.Just after leaving contact with the board, the boy's velocityrelative to the sidewalk is 6.00 m/s, 8.30° above thehorizo..
A long uniform board weighs 54.9 N (11.0 lbs) rests on a support at its mid point. Two children weighing 419.0 N (83.8 lbs) and 209.0 N (41.8 lbs) stand on the board so that the board is balanced. What is the upward force exerted on the board by t..
What is the frequency of ultrasound in a medium if he wave length is 3.0 x 10^-3 m and velocity is 1300 mm/ms.
A passenger on a moving train walks at a speed of 1.8 m/s due north relative to the train. What are the magnitude and direction(west of north) of the velocity of the train relative to the ground
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