Physics, 27.01.2020 21:31 amiechap12
Aspring has a force constant of 40,000 n/m. it is resting horizontally on a 20 m tall roof top and fires a 2 kg mass to the ground below. the mass hits the ground a 21 m/sec. how far was the spring compressed? (no energy was lost)
in the previous problem, if the mass hits the ground at 19 m/sec, how much energy was lost due to air resistance?
Answers: 2
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Name three different units of energy used to measure heat and describe what type of situations each is usually used.
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According to newton’s law of universal gravitation, which statements are true? as we move to higher altitudes, the force of gravity on us decreases. as we move to higher altitudes, the force of gravity on us increases. as we gain mass, the force of gravity on us decreases. as we gain mass, the force of gravity on us increases. as we move faster, the force of gravity on us increases.
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Physics, 22.06.2019 22:30
Find v1, the speed of the fluid in the left end of the main pipe. express your answer in terms of h1, h2, g, and either a1 and a2 or γ, which is equal to a1a2.
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Aspring has a force constant of 40,000 n/m. it is resting horizontally on a 20 m tall roof top and f...
Computers and Technology, 25.11.2019 22:31