physical science
posted by erika
If sam drops a 40 kg mass from a height of 20 meters on earth how much was the potential energy of the mass before he dropped it
a800 j
b784 nm
c800 nm
d7840 j
e 200 j
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If sam drops a 40 kg mass from a height of 20 meters on earth how much was the potential energy of the mass before he dropped it a800 j b784 nm c800 nm d7840 j e 200 j