A 144-g baseball is dropped from a tree 11.0m above the ground. A.With what speed would it hit the ground if air resistance could be ignored?Express your answer to three significant figures and include the appropriate units. B.If it actually hits the ground with a speed of 7.50m/s , what is the magnitude of the average force of air resistance exerted on it?Express your answer to three significant figures and include the appropriate units.
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Physics, 21.06.2019 22:20
The place you get your hair cut has two nearly parallel mirrors 6.00 m apart. as you sit in the chair, your head is 2.00 m from the nearer mirror. looking toward this mirror, you first see your face and then, farther away, the back of your head. (the mirrors need to be slightly nonparallel for you to be able to see the back of your head, but you can treat them as parallel in this problem.) how far away does the back of your head appear to be?
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What is the momentum of a 2 kg object moving at 15 meters per second
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Physics, 23.06.2019 00:30
Which of the following are forms of phase changes a. freezing b. condensation c. heating d. exchanging
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A 144-g baseball is dropped from a tree 11.0m above the ground. A.With what speed would it hit the g...
Mathematics, 18.04.2020 00:26
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