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If the floor at the base of a table is very hard, and a tennis ball dropped from the top of the table 1 meter high rebounds with 85% of its velocity, how high will the ball bounce back? Please show all work. Thank you.
The velocity vs. time curve of an object is an increasing straight line. You observe when the time is 1 second that the velocity is equal to 3 m/s, What is the acceleration of the object
An energy storage system based on a flywheel (a rotating disk) can store a maximum of 3.2 MJ, What is the moment of inertia of the flywheel
An Shot putter throw the shot from a height of 2m over the ground with the speed of 15m/s in the direction 36,9° upwards. What is the speed of the shot when it lands
A diffraction grating has 1.5?m spacing. Find the first-order diffraction angles for the following wavelengths. Find the first-order diffraction angles for red light
A 120 granite cube slides down a 45 frictionless ramp. At the bottom, just as it exits onto a horizontal table, it collides with a 210 steel cube at rest.
Imagine that a hypothetical life form is discovered on our moon and transported to Earth. calculate the heat lost by each body from the vaporization of sweat
A conveyor belt is moving horizontally with a constant speed of 7 m/s (wrt earth). What is displacement of the bag (wrt earth) by the time it reaches the speed of the belt
You are pushing a refrigerator across the floor of your kitchen. You exert a horizontal force of 273 N for 7.2 s, What is the work done by friction
An ideal gas initially at 20°C and 219 kPa has a volume of 4.70 L. It undergoes a quasi-static,, Find the heat added to the gas during the expansion.
A 2.6k and a 1.8k resistor are connected in parallel and this combination is connected in series with a 1.8k resistor. If each resistor is rated at 1/2W, what is the maximum voltage that can be applied across the whole network.
The coefficient of kinetic friction for wood sliding on wood is 0.20. What is the final speed of the bullet
A golfer hits a shot to a green that is elevated 3 m above the point where the ball is struck. find the speed of the ball just before it lands
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