Physics, 11.05.2021 22:10 barisegebalci2352
Which of the following is the closest to the change in gravitational potential energy for a 10 kg weight which is raised from a 1 m tall stool to a 5 m tall table?
Answers: 2
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Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".
Answers: 3
Which of the following is the closest to the change in gravitational
potential energy for a 10 kg w...
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