How high above the ground is a 3 kg object that has 147 J (joules) of potential energy
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Ответ:
4.9949
Explanation:
M = 3 kg
P.E = 147 joules
G = 9.81 ms^-2
H = ?
P.E = MGH
147 = 3 x 9.81 x H
147 = 29.43H
147/29.43 = 29.43H/29.43
4.9949 = H
:. H = 4.9949
Ответ:
while aerobics generally improves the cardio vascular system. e.g. heart, lungs, red blood cell count etc
both are essential for a healthy and fit body.