A 30 kg child rides a 9 kg sled down a frictionless ski
A 30 kg child rides a 9 kg sled down a frictionless ski slope. At the bottom of the hill, her speed is 7 m/s. If the slope makes an angle of 15° with the horizontal, how far did she slide on the sled?
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a fisherman notices that his boat is moving up and down periodically without any horizontal motion owing to waves on
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for how many seconds must the electrolysis of cuso4 aq solution be carried out at a current of 225a to deposit 241 g of
a 30 kg child rides a 9 kg sled down a frictionless ski slope at the bottom of the hill her speed is 7 ms if the slope
the figure below shows a ball of mass m 05 kg at rest on top of a massless platform the platform is connected to the
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the outer surface of a skiers clothes of emissivity 0700 is at a temperature of 740deg c find the rate of radiation if
the filament of a light bulb has a temperature of 296e3 degc and radiates 50 watts of power the emissivity of the
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