B) 3. A car is travelling at initial speed u = 32 m/s. It then starts to decelerate with a = -2.0 m/s2
for 8.0 seconds.
a) What is the speed of the car after 8.0 seconds?
b) How far did the car travel during those 8.0 seconds?

Arock collection comes from which part of earth?

Write down two additional questions about earth's magnetic field that will make your presentation more informative.

An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg.how much energy e must be supplied to the device? express your answer in joules.