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soldi70 [24.7K]
3 years ago
12

A person drops a brick from the top of a building. The height of the building is 400 m and the mass of the brick is 2.00 kg. Wh

at will be the speed of the brick right before it touches the ground? Use g = 10.0 m/s2
Physics
1 answer:
DaniilM [7]3 years ago
5 0
-- It takes the brick 8.9 seconds to reach the ground. 

-- At the instant of the "splat", it's falling at 89 m/s.

-- The mass doesn't matter. If not for air resistance, every object
    would fall at the same rate.  The answer is the same for a feather,
    a rubber chicken, a brick, or a school bus.
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The weight lifter would not get past this sticking point.

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A particle with charge -40.0nC is on the x axis at the point with coordinate x=0 . A second particle, with charge -20.0 nC, is on the x axis at x=0.500 m.

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What is electric potential?

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