12. the air in the tank will expand because of the heat in the car. Since the air is under very high pressure, the tank will explode
13. following Pascal's principle,press pressure exerted on one part of a compressed fluid will be exerted equally on all other parts of the fluid. therefore;
2500 ÷ 25 = x ÷ 5
100 = x ÷ 5
100 × 5 = x
x = 500N
