klrocha628
klrocha628
02-07-2021
Physics
contestada
1.8kg 42J 9.8 how high is the shelf
Respuesta :
kushm6652
kushm6652
02-07-2021
Answer:
2.38m
Explanation:
Use potential energy
PE= mgh
42= 1.8*9.8*h
solve for h
to get h= 2.38 m
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