Physics, 24.03.2021 04:30 doggosbepis
10. A boy falls and hits his head with an impulse of 30. N. s. On cement, the boy would hit for .050s. What force did the floor exert on the boy?
Answers: 2
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A248-g piece of copper is dropped into 390 ml of water at 22.6 °c. the final temperature of the water was measured as 39.9 °c. calculate the initial temperature of the piece of copper. assume that all heat transfer occurs between the copper and the water. remember, the density of water is 1.0 g/m
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Calculate the first and second velocities of the car with four washers attached to the pulley, using the formulas v1 = 0.25 m / t1 , and v2 = 0.25 m / (t2 – t1) where t1 and t2 are the average times the car took to reach the 0.25 and the 0.50 meter marks. record these velocities, to two decimal places, in table e.
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Ais a machine that makes work easier when a single force is applied. a simple machine b compound machine c endangered machine d complex machine
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10. A boy falls and hits his head with an impulse of 30. N. s. On cement,
the boy would hit for .05...
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