Physics, 18.10.2021 19:10 Hammon1774
three identical balls are thrown from the top of a building, all with the same initial speed. the first ball is thrown horizontally, the second at some angle above the horizontal, and the third at some angle below the horizontal, as in the figure below. neglecting air resistance, rank the speeds of the balls and they reach the ground, from fastest to slowest.
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How many dots must be added to the symbol to properly represent a standard nitrogen ion? a) 1 b) 3 c) 5 d) 8
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A1,700kg car is being used to give a 1,400kg car a push start by exerting a force of 140n the impulse on the smaller car during the 30.0s of contact is +670kg*m/s. what is the impulse of the smaller car on the larger car? -814 kg*m/s 0kg *m/s -670kg*m/s -550kg*m/s
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Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?
Answers: 1
three identical balls are thrown from the top of a building, all with the same initial speed. the fi...
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