Physics, 30.10.2020 18:10 lola06032003
A 0.26 kg rock is thrown vertically upward from the top of a cliff that is 32 m high. When it hits the ground at the base of the cliff, the rock has a speed of 29 m/s. Assuming that air resistance can be ignore and using conservation of mechanical energy, find (a) the initial speed of the rock and (b) the greatest height of the rock as measured from the base of the cliff.
Answers: 2
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True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.
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What is a subatomic particle with a negative charge and very little mass?
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22. the top of a cliff is located a distance h above the ground. at a distance h/2 there is a branch that juts out from the side of the cliff, and on this branch a bird's nest is located. two children throw stones at the nest with the same initial speed, one stone straight downward from the top of the cliff and the other stone straight upward from the ground. in the absence of air resistance, which stone hits the nest in the least amount of time?
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The first law of thermodynamics is as follows: βu=q-w , which means in a system is equal to added, minus done by the system. the units for these variables are in .
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A 0.26 kg rock is thrown vertically upward from the top of a cliff that is 32 m high. When it hits t...
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