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What happens when a rubber rod is rubbed with a piece of fur?
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It's a snowy day and you're pulling a friend along a level road on a sled. you've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. you've been walking at a steady 1.5m/s, and the rope pulls up on the sled at a 32 ∘ angle. you estimate that the mass of the sled, with your friend on it, is 65 kg and that you're pulling with a force of 80 n .
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What energy transformations occur each time the skateboarder rolls up the ramp?
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The “brownie” camera was a popular camera not just because of a great advertising campaign by eastma...
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