Anouk does 150 J of work using a hammer to pull a nail out of a piece of wood, and the hammer does 105 J of work on the nail. Wh
at is the efficiency of the hammer? 1.4% 7% 70% 143%
2 answers:
Answer:
70%
Explanation:
105 divided by 150 equal to 0.7. then u multiply 0.7 by 100. equal 70. so its C because efficiency = (effective work)/(executed work) * 100%
Answer:
70%
Explanation:
105 divided by 150 equal to 0.7. then u multiply 0.7 by 100. equal 70. so its C because efficiency = (effective work)/(executed work) * 100%
hope it helped :3
You might be interested in
C. they are equal
This is because it takes about the same amount of time for the moon to rotate around its axis that it does to rotate around the Earth.
One possible answer could be that a chemical reaction has occurred.
Answer:
1.08 grams
Explanation:
first, we need to find the number of moles
we divide 12.1/22.4=0.54 moles
we multiply the number of moles with the molecular mass 0.54x2=1.08g
One mole of methane has a mass of 16 g
<span>(4) zinc.................</span>
