Jane is in a shiny sports car at the top of a 100m vertical cliff over looking the Pacific Ocean. It has a potential energy of 20,000 J relative to the ground below. Unfortunately, Jane while looking at the scenery, takes her foot off the brake and it rolls over the cliff. When it is halfway to the ground, its kinetic energy is? Gravity= 10 m/s2. KE=1/2*m*V2
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Physics, 22.06.2019 06:00
An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?
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Two resistors r1 and r2 may be connected either in series or parallel across an ideal battery with emf ε. we desire the rate of energy dissipation of the parallel combination to be 8.75 times that of the series combination. if r1 = 105 ω, what are the (a) smaller and (b) larger of the two values of r2 that result in that dissipation rate?
Answers: 2
Physics, 22.06.2019 15:00
Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of
Answers: 1
Jane is in a shiny sports car at the top of a 100m vertical cliff over looking the Pacific Ocean. It...
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