Answer:
Explanation:
Average energy contained by a slice of pizza is 860 J .
energy used in lifting 32 kg bar by .50 m = mgh
= 32 x 9.8 x .5 = 156.8 J
efficiency is 25 % , so energy used up = .75 x 156.8 = 117.6 J
So number of times exercise to be repeated to burn off energy of a slice of pizza
= 860 / 117.6
= 7.3 or 7 times .
Answer:
0.707m
Explanation:
from formula of range i.e R=Usin2Q/g
Answer:20,000 m/s
Explanation: the formula is f=v/lambda so you would do 10,000=v/2 and you multiple the 2 to 10,000 since you were originally dividing and you get 20,000 and your unit is m/s
the answer to this qustion is c friction force
<span>The density of fissionable uranium is not high enough. Basically more neutrons are absorbed than are produced so any chain reaction dies. hope this helps</span>
