Imagine that a white car is moving 5km/he west when a yellow car moving 10 km/hr west collides with it from behind. What happens to each car kinetic energy?

What is the magnification of a real image if the image is 10.0 cm from a mirror and the object is 50.0 cm from the mirror ? use the equation m=-di/do. a. -5.0 b. 5.0 c. 0.20 d. -0.20

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

Ammonia enters the expansion valve of a refrigeration system at a pressure of 10 bar and a temperature of 18oc and exits at 6.0 bar. the refrigerant undergoes a throttling process. determine the temperature, in oc, and the quality of the refrigerant at the exit of the expansion valve.