Asmall rock is thrown vertically upward with a speed of 22.0 m/s from the edge of the roof of a 30.0-m-tall building. the rock doesn’t hit the building on its way back down and lands on the street below. ignore air resistance. (a) what is the speed of the rock just before it hits the street? (b) how much time elapses from when the rock is thrown until it hits the street?
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Physics, 21.06.2019 19:30
Note: the following questions are unrelated to the balmer series or the martian. refer to your course notes. a sun-sized star will spend most of its lifetime as a: white dwarf b. red giant c. protostar d. main-sequence star
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Physics, 21.06.2019 19:40
Abird sitting high in a tree is an example of what type of wnergy
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Physics, 22.06.2019 10:00
Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.
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Physics, 22.06.2019 18:00
At the negative terminal of the battery the electron has electric potential energy. what happens to this energy as the electron jumps from the negative to the positive terminal?
Answers: 1
Asmall rock is thrown vertically upward with a speed of 22.0 m/s from the edge of the roof of a 30.0...
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