Answer:
13.1
Explanation:
that's what I'm gonna go with, but u can research more
22.5 J
Explanation:
Given:
x = 3 m

The spring potential energy
is


From Boyle's law, the volume of a fixed mass of a gas is inversely proportional to its pressure at constant absolute temperature.
Therefore; P1V1 =P2V2; where PV is a constant
hence; 12 × 6 = 3× p2
p2 = 72/3
= 24 atm
Therefore; the new pressure will be 24 atm
Divide distance by the time it takes to travel that distance
the formula for time is divide distance/speed
Water because the light is able to enter the water and allow heat to enter faster.