A heavy lab cart moves with kinetic energy Ko on a track and collides with a lighter lab cart that is initially at rest. The carts bounce off each other but the collision is not perfectly elastic, causing the two-cart system to lose kinetic energy Klost. A student wonders if the fraction of kinetic energy lost from the two-cart system during the collision (Klost/Ko) depends on the speed of the first cart before the collision and plans to perform an experiment. Design an experimental procedure that could be used to test the student’s hypothesis. Assume equipment usually found in a school physics laboratory is available. In the table below, list the quantities that would be measured and the equipment that would be used to measure each quantity. Also, define a symbol to represent each quantity. You do not need to use every row and may add additional rows as needed. Describe the overall procedure to be used, referring to the table above. Provide enough detail so that another student could replicate the experiment. As needed, use the symbols defined in the table and/or include a simple diagram of the setup. Be sure to address how experimental uncertainty could be reduced.
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Physics, 21.06.2019 13:30
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Physics, 21.06.2019 21:30
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Beryl states that insulation with the smallest possible thermal conductivity is best to keep a house warm in winter, but worst for keeping a house cool in summer. sapphire insists the reverse is true: low thermal conductivity is good in the summer, but bad in the winter. which one, if either is correct? a. beryl, because low thermal conductivity results in low heat transfer. b. beryl, because low thermal conductivity results in high heat transfer. d. sapphire, because low thermal conductivity results in high heat transfer. e. neither, because low heat transfer is desirable both in summer and in winter.
Answers: 2
A heavy lab cart moves with kinetic energy Ko on a track and collides with a lighter lab cart that i...
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