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Fynjy0 [20]
3 years ago
7

Jayne lifts the barbell 120 cm upwards. She has a mass of 60kg. How much work does she do?

Physics
1 answer:
Rasek [7]3 years ago
3 0
Work = Force x displacement
Force = mass x gravitational acceleration
Force = 60 x 9.81 = 588.6N
Work = 588.6 x 0.12m =70.632 J
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Car A rear ends Car B, which has twice the mass of A, on an icy road at a speed low enough so that the collision is essentially
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you should begin viewing a bacteria specimen with what objective lens? view available hint(s)for part g you should begin viewing
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2 years ago
How much would it cost to cover the entire land area of the U.S. in dollar bills?
agasfer [191]

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  $900 trillion

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  1200 miles × 3000 miles = 3.6×10^6 square miles.

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One mile is 160,934.4 cm, so 1 square mile is about ...

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3 years ago
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attashe74 [19]

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