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A railroad diesel engine weighs four times as much as a freight car. The diesel engine coasts at 6.0 km/h into a freight car that is initially at rest.
Use conservation of momentum to find a speed at what the engine + car coast after they couple together.
Express your answer to two significant figures and include the appropriate units.
A toy car of mass 4 kilogram is sitting stationary when a child rolls a toy truck of mass 6.5 kilogram straight towards it in the negative x-direction with a speed of 5 m/s. Find the velocity of the center of mass of the system consisting of the t..
A skateboarder shoots off a ramp with a velocity of 6.80m/s, directed at an angle of 59° above the horizontal. The end of the ramp is 1.10 m above the ground.
A 70 kg man steps out a window and falls (from rest) 1.2 m to a sidewalk. What is his speed just before his feet strike the pavement
an eagle is flying horizontally at 5.5 ms with a fish in its claws. it accidentally drops the fish. a how much time
An inductor is connected to the terminals of a battery that has an emf of 12.0 V and negligible internal resistance. What is the resistance R of the inductor
When a carpenter shuts off his circular saw, the 10.0-inch diameter blade slows from 4812 rpm to zero in 2.50 second. Obtain what is the angular acceleration of the blade
What is the probability that a diatomic molecule, modeled as a harmonic oscillator will be observed outside the classical limit of motion?
A 0.477 kg block of wood hangs from the ceiling by a string, and a 0.0680 kg wad of putty is thrown straight upward, How high does the putty-block-system rise above the original position of the block
an object is solid throughout. when the object is completely submerged in ethyl alcohol its apparent weight is 15.8 n.
Ab electron passing through point P feels a forced out of the page. Which of the directions left, right, up, down, into, or out of the page that the electron can move that will generate a force out of the page on the electron at point P (select al..
Snowballs are thrown with a speed of 16m/s from a roof 9.0m above the ground. Find the direction of motion of the two snowballs
What is the work completed by the force of gravity.
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