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A 9.5 g bullet is accelerated in a rifle barrel 35.9 cm long to a speed of 458 m/s.
Use the work-energy theorem to find the average force exerted on the bullet while it is being accelerated. Answer in units of N
A 90.3-MHz radio wave is broadcast from KTUH's transmitter. how much time does it take for the radio wave to reach you
A playground is on the flat roof of a city school, 7.00 m above the street below. The vertical wall of the building is 8.00 m high, forming a 1.00 m high railing around the playground. Find the speed at which the ball was launched
Two tugboats pulls a disabled supertanker. Each tug exerts a constant force of 1.80x106 N, What is the total work they do on the supertanker
A neutron star is a stellar object whose density is about thatof nuclear matter. What would be its radius
A machinist turns the power on to a grinding wheel, at rest, at time t = 0 s. The wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 66 rad/s. The wheel is run at that angular velocity for 37 s and then power is shu..
A uniform crate with a mass of 17.3 kg rests on a horizontal floor with a coefficient of static friction between the crate and the floor (?s) of 0.513. What horizontal force applied to the top of the crate
The red block in the %u201CSame Volume%u201D floats in water. what volume of the blue block would float above the water line if the blue block was placed on top of the red block in the water
A car is traveling at 50 mi/h when the brakes are completely applied, producing a constant deceleration of 28ft/s2. What is the distance covered before the car comes to a stop? (Give your answers correct to one decimal place.)
You wish to buy a motor that will be used to lift a30-kg bundle of shingles from the ground to the roof of a house. Determine the minimum torque that the motor must be able to provide
You land on a spherical asteroid and take a walk for 3km. You notice that the stars ahead of you rise 36 degrees as you walk
a ball is thrown horizontally from a 20-m-high building with a speed of 5.0 m/s , Make a sketch of the balls trajectory
Two identical pellet guns are fired simultaneously from the edge of a cliff. These guns impart an initial speed of 32.0 m/s to each pellet. Gun A is fired straight upward, with the pellet going up and then falling back down, eventually hitting the gr..
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