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A man pushes a lawn mower on a level lawn with a force of 186 N. If 39% of this force is directed downward, and 49 W of power is expended in pushing the mower 6.9 m, how much time is spent in pushing the mower this distance?
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Question: What is the potential difference across the 10 Ω resistor in the figure ? What is the potential difference across the 20 Ω resistor in the figure?
An inflatable life raft is released from an air plane at 500 m altitude, in level flight, with an air speed of 20 m/s in the horizontal direction. How long before the raft strikes the water? How far from the release poin ...
The wind blows with a speed of 31.9 m/s over the roof of your house. Assuming the air inside the house is relatively stagnant, what is the pressure difference at the roof between the inside air and the outside air? Answe ...
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