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A 50 kilogram pitching machine (excluding the baseball) is located on a frozen pond. The machine fires a 0.40 kilogram baseball with a speed of 35 m/s in the horizontal direction. Find the recoil speed of the pitching machine? (Assume negligible friction.)
Jumping up before the elevator hits. After the cable snaps and the safety system fails, an elevator cab free-falls from a height of 33.0 m. determine the magnitudes of the impulse
How much work is done by the Moon's gravitational field as a 1065 kg meteor comes in from outer space and impacts on the Moon's surface
A 1172kg car traveling to thewest slows down uniformly from 20.0m/s to 5.0m/s. How far does the car travel during the deceleration
A glass rod is initially neutral. It is then rubbed against a silk cloth. Afterwards, the rod has a charge of +5.0 C, How many electrons did the glass rod lose or gain
A neutron star and a black hole are 2.900e+12 m from each other at a certain point in their orbit. What is the magnitude of the gravitational attraction between the two
Two equally charged insulating balls each weigh 0.26 g and hang from a common point by identical threads 25 cm long. find the magnitude of the charge on each ball
A baseball is popped straight up into the air and has a hang-time of 6.25 s. Determine the height to which the ball rises before it reaches its peak
A 02385 mH inductor has a length that is four times its diameter. If it is wound iwth 10.3 cm^-1 truns per centimeter, what is the length? Answer in units of m.
At one point in a pipeline the water's speed is 3.00m/s and the gauge pressure is 5.00x10^4Pa. Find the gauge pressure at a second point in the line
A 42.0 centimeter long tube is closed at one end, and resonates at a fundamental frequency of 196.0 Hz. Evaluate the first two overtones of the tube
On a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s, What are the magnitude and direction of the velocity of the red glider after the collision
A frictionless simple pendulum on Earth has a period of 1.75 s. On Planet X its period is 2.14 s. What is the acceleration due to gravity on Planet X
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