Answer:
They measured their train using their handspan
Answer:
4400 N
Explanation: (c)
P= 
F= PA
P= pressure
A= area
P=800x
and A= 5.5 x 

Force F= 800x
x0.0055= 4400 N
force exerted by the gas on the piston is 4400 N
<span>The reaction force would be the exact opposite of the action. In this case, choice (c) would be the most correct. If the action is the ball pushing the glove, the reaction would then be the glove pushing back on the ball.</span>
Answer:
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Explanation: