Blocks A (mass 4.00 kg) and block B (mass 2.00 kg) are on a horiz frictionless surface. A light spring is compressed between them, storing 54.0 J of elastic potential enugy. The two blocks are released from rest and move off in opposite directions. What is the final speed of block B, after leaving the spring
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1) what is the power in horsepower of a 100 watt light bulb? what is the power in kilowatts of a 200 horsepower engine? 2) if a cars engine is providing 3000 n of force to keep the car moving at 5 m/s, what is the engine’s effective power? 3) how many gallons of water will be pumped from a well 30 feet deep by a 1/2 hp engine in 1 minute? (1 gallon weighs 8.34 pounds)
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Blocks A (mass 4.00 kg) and block B (mass 2.00 kg) are on a horiz frictionless surface. A light spri...
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