Which statement best compares potential and kinetic energy? .
a) objects always have more potential energy than kinetic energy..
b)only kinetic energy increases when the velocity of an object increases.
c)only potential energy decreases when an object’s height increases..
d)objects always have more kinetic energy than potential energ

1. consider the case in which air fills air shocks on a truck trailer. the pressure in the shocks is 2 mpa. the temperature is 300 k. the diameter of the shock piston is 10 cm and the initial length of the cylindrical cavity containing the compressed air is 40 cm. a. the truck is gradually loaded over a period of a day in a static setting. the temperature is held constant for the atmosphere and thus for the gas shock. calculate the compressibility of the air in the shock for this condition when the truck is initially being loaded. b. if the shocks were loaded in a dynamic setting by driving over bumps, what would be the compressibility? state your assumption. c. what is the initial load on the shock if the shock is in an atmospheric 100 kpa? d. if the shock is compressed using the process described in part a, and the air shock compressed air cavity length decreases to 20 cm, what is the additional load applied to the shock?

State the following: boyle's law and charle's law

The force it would take to accelerate an 900-kg car at the rate of 6m/s2