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A 1.5 kg block is attached to a spring by spring constant 16 N/m. While the block is sitting at rest, a student hits it with a hammer and almost instantaneously gives it a speed of 40 cm/s.
a) What is the amplitude of the subsequent oscillations?
b) What is the block's speed at the point where x =1/3A?
The coefficient of static friction between m1 and the horizontal surface is 0.60, and the coefficient of kinetic friction is 0.30. what will be the acceleration of the system
The gap between electrodes in a spark plug is 6.00 * 10^-2cm. In order to produce an electric spark in a gasoline-airmixture, the electric field must reach a value of 3.000*10^6V/m. What minimum voltage must be supplied by the ignitioncircuit when st..
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An astronaut on a spaceship traveling at 0.75c relative to Earth measures his ship to be 29m long. On the ship, he eats his lunch in 23min. What length is the spaceship according to observers on Earth
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The drawing shows a mercury barometer. Consider two barometers, one using mercury and another using an unknown liquid. assume that the pressure above the liquid in each tube is negligible. The height of the unknown liquid is 18.3 times greater tha..
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A 722 kg car stopped at an intersection is rear-ended by a1620 kg truck moving w/ a speed of 14.5 m/s. What is the speed of the wreck immediately after the collision
A particular engine has a power output of 4.00 kW and an efficiency of 22.0%. Assume the engine expels 8500 J of energy in each cycle. Find the energy absorbed in each cycle
On average, an electric water heater operates for 1.2 h each day. It has a power requirement of 4500 W, What is the resistance of a typical water heater
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