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eburnhisel2023
01.08.2019 •
Chemistry
How much potential energy dose 40-kg medicine ball gain when it is lifted 5 m? use the formula gpe= mass x gravity (9.8m/s2) x height
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Ответ:
m(medicine ball) = 40 kg.
h = 5 m.
g = 9,8 m/s².
Ep = m·g·h.
Ep = 40 kg · 9,8 m/s² · 5 m.
Ep = 1960 N·m = 1960 J.
Joule is equal to the energy transferred to an object when a force of one newton acts on that object (in this case medicine ball) in the direction of its motion through a distance of one metre.
Ответ:
The answer is DX=AX and m<ABX + m<CBX = 90°. Got the same question and these were the answers.
Hope this helps you :)