Ababy stroller is a rest on top of a hill which is 10 m high. the stroller and baby have a mass of 20 kg. what is the potential energy of the baby and stroller? formula: pe = m g h (gravity near earth is 9.8 m/s²)
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Ответ:
Potential energy (PE) = mgh
mass of stroller and baby = 20 Kg
PE = 20 Kg x 9.8m/s^2 x 10 m
= 1960 kg m^2/s^2
Ответ:
Trees would stop water runoff and make it slower.