Part A How many joules of energy does a 100-watt light bulb use per hour? Expres

Question

Part A How many joules of energy does a 100-watt light bulb use per hour? Express your answer using two significant figures.



Part B How fast would a 68kg person have to run to have that amount of energy? Express your answer using two significant figures.
m/s

Part A How many joules of energy does a 100-watt light bulb use per hour? Express your answer using two significant figures.



Part B How fast would a 68kg person have to run to have that amount of energy? Express your answer using two significant figures.
m/s

Part B How fast would a 68kg person have to run to have that amount of energy? Express your answer using two significant figures.
m/s

Explanation / Answer

ENERGY = 100J/s*3600s=360000J=3.6*10^5J

B)3.6*10^5=1/2*68v^2

v=102.9m/s

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