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What was the ball's initial speed?
A spring gun at ground level fires a golf ball at an angle of 45 degrees. The ball lands 10 m away. a) What was the ball's initial speed? b) For the same initial speed, find the two firing...
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Light of wavelength 2400 x 10-10 m in air will become light of wavelength in glass (µ = 1.5) equal to
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A 6.1kg bowling ball and a 7.2kg bowling ball rest on a rack 0.75 m apart. What is the force of gravity exerted on each of the balls by the other ball? G= Univ
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I have a physics question
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In .....................................................
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Catching a wave, 77-kg surfer starts with a speed of 1.3 m/s, drops a height of 1.65m, and ends with a speed of 8.2 m/s. How much non conservative work was done on the suffer?
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Physics Question
A 1.2KG block is held against a spring of force constant 1.0x104N/m, copressing it a distance of 0.15m. How fast is the block moving after it is released and the spring pushes it away?
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A 0.14kg pinecone falls 16m to the ground, where it lands with a speed of 13m/s. With what speed would the pinecone have landed if there had been no air resistance?
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Suppose the two speeds of a two canoes after they are pushed apart are 0.60 m/s for canoe 1 and 0.45 m/s for canoe 2. if the mass of canoe 1 is 350kg, what is the mass of canoe 2?
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During a rescue operation, a 6000-kg helicopter hovers above a fixed point. The helicopter blades send air downward with a speed of 65 m/s. What mass of air must pass through the blades every second...
