4. Michael and his twin brother have a combined mass of 150 kg and are zooming along in a 100 kg amusement park bumper car at 7 m/s. They bump Sarah's car, which is at rest.
Sarah has a mass of 30 kg. After they collide, the twins continue ahead with a speed of 2.5
m/s. How fast is Sarah's car bumped across the floor?
Variables:
Show Work:

the maxium height is 34m/s

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

the answer is false. this is because for ice to melt, it requires latent heat of melting. latent heat means heat energy required to change phase without any increase in temperatures. therefore, the ice will take energy from the environment to melt hence atmospheric temperatures will reduce.