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Susan asked: The battery pack I got for an electric fence doesn’t have room for a car battery in it and it isn’t rechargeable. It seems to me more sensible to get a car battery. Can I just attach this to the wire with leads? Do I have to cover it in some way to [...] RelientKayers asked: A boat of mass 250 kg is coasting, with its engine in neutral, through the water at speed 3.00 m/s when it starts to rain. The rain is falling vertically, and it accumulates in the boat at the rate of 10.0 kg/hr. The drag is proportional to the square of the speed of the [...] |
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