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A tire is filled with air at 13°C to a gauge pressure of 220 kPa. If the tire reaches a temperature of 42°C, what fraction of the original air must be removed if the original pressure of 220 kPa is to be maintained?
Two parallel wires of length 17 m are separated by a distance of a = 0.13 cm, What is the magnetic force on each wire
A coil has 480 turns and self-inductance 3.40 mH. At t = 0.0150 s, what is the magnitude of the induced emf
A loaded ore car has a mass of 935 kg and rolls on rails with negligible friction. What maximum power must the winch motor provide
Two workmen are stacking heavy cinder blocks from the ground to a raised pallet. If one of them stacks 100 of the blocks in 20 min and the other stacks 100 of them in 30 min, which one has done more work? Which has the greater power output?
A uniform metal rod, with a mass of 3.4 kg and a length of 1.3 m, is attached to a wall by a hinge at its base. Find the vertical component of the force exerted on the rod by the hinge
You are rotating a 2.0kg rock in a vertical circle,using a very light string. Find the speeds of the rock at the highest and lowest position
A shotgun blast of 140 decibels occurs with humidity of 70% and temperature of 50 degrees. Illustrate what is the decibel level at 100 yards away? At 200 yards
A 5 g bullet with speed of 400m/s gets stuck in a 1 kg wooden block (originally not moving). Classify the collision. (b) Find the new speed of block+bullet. (c) Find the amount of kinetic energy lost. Where does it go?
An object weighting 100N is traveling vertically upward from the ground in the absence of air resistance at a constant velocity of 5 m/s
what is the smallest value d can have before the string breaks?
A satellite has a mass of101kg and is located at2.03106m above the surface of Earth. What is the potential energy associated with the satellite at this location
She notices a group of workers down the walkway who have suddenly blocked her path, and she makes a quick stop in 1.8 seconds. What is Suzies average acceleration
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