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1.8kg 42J 9.8 how high is the shelf
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5 votes
1.8kg 42J 9.8 how high is the shelf

User Oskarth
by
5.1k points

1 Answer

2 votes

Answer:

2.38m

Step-by-step explanation:

Use potential energy

PE= mgh

42= 1.8*9.8*h

solve for h

to get h= 2.38 m

User Ssmith
by
4.5k points
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