Physics, 16.10.2019 19:20 Playboycxm

List three ways you use energy. how does each example involve a change?

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Physics, 22.06.2019 07:30, darkskinnednune

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Physics, 22.06.2019 10:00, ceasar6071

Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?

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Physics, 22.06.2019 12:00, amar82

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Physics, 22.06.2019 16:40, Crxymia

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".