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The rope wrapped around the outer diameter of the disk is pulled at a constant speed of 1.06 m/s. If the outer radius is 1.39 cm and the inner radius is 0.37 cm, how fast does the hanging mass rise?
Two charged bodies exert an electrostatic force of 144 N on each other. If the distance between them is quadrupled and magnitude of one charge is cut in half, what is the new force between them.
A toy of mass 0.155 kg is undergoing simple harmonic motion (SHM) on the end of a horizontal spring with force constant 305 N/m. What is the maximum speed attained by the object during its motion?
A uniform electric field of magnitude 256 V/m is directed in the negative y direction. Through what potential difference did the charge move
When chasing a hare along a flat stretch of ground, a greyhound leaps into the air at a speed of 14.0 m/s, at an angle of 30.0° above the horizontal. What is the range of his leap
A 12kg runaway grocery cart runs into a spring with spring constant 210 N/m and compresses it by 70 cm .What was the speed of the cart just before it hit the spring.
You have a pulley 13.1 cm in diameter and with a mass of 2.0 kg. You get to wondering whether the pulley is uniform. What is the actual moment of inertia of the pulley
A 59.0 kg skateboarder wants to just make it to the upper edge of a "quarter pipe," a track that is one-quarter of the circle with a radius of 3.80 m.
A roller coaster, travelling with an initial speed of 15 meters per second, decelerates uniformly at -7 meters per second per second to a full stop. How far does the roller coaster travel throughout its deceleration.
A person exerts a horizontal force of F = 190 N in the test apparatus. (h of arm = 0.34 m. And h of flexor muscle= .054 m) Find the horizontal force M that his flexor muscle exerts on his fore arm.
Using Ampère's law, calculate the magnetic field inside and outside of a toroidal coil with a radius of 25 cm
A 2000 kg car is slowed down uniformly from 23.0 m/s to 5.00 m/s in 4.40 s. What average total force acted on the car during that time
You place one end of the pole on a fence post and hold the other end of the pole 35 from its tip. Explain how much force must you exert to keep the pole motionless in a horizontal position?
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