A 2.0 x 10^3 kilogram car collides with a tree and is brought to rest in 0.50 seconds by an average force of 6.0 x 10^4 newtons.
What is the magnitude of the impulse on the car during this
0.50 second interval?

Which of the following is not a characteristic of s waves? a. travel slower than p waves. b. cannot be detected in locations more than 105° from an earthquake’s epicenter. c. travel through solids and liquids. d. only affect coastal regions.

Rohit is trying to tune an instrument

Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.