Quick physics questions! will give
which of these is the best example of an elastic collision?
a rubber ball is dropped from 1.2 m and bounces back up to a height of 0.8 m.

a billiard ball strikes another of the same mass at rest and stops, and the second ball then moves with the same velocity as the first ball.

a cart rams a similar cart and latches onto it with a loud clack.

a cart rams another with a compressed spring, which is released, pushing them apart.
two objects, a and b, each of mass 0.22 kg, are moving at 0.52 m/s directly toward each other. a completely inelastic collision occurs and both objects stop. what percentage of the total kinetic energy is changed into other forms of energy?

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?

Free runners jump long distances and land on the ground or a wall. how do they apply newton’s second law to lessen the force of impact?

4. a 75.0 g piece of ag metal is heated to and dropped into 50.0 g of water at the final temperature of the mixture is what is the specific heat capacity of silver? 5. a 465 g chunk of iron is removed from petrucci, ralph h.. general chemistry (p. 290). pearson education. kindle edition.