Acar with a mass of 1250kg has an initial velocity of 21m/s. after 5.5s, it has a velocity of 43m/s.
a) what was its initial momentum?
b) what is its final momentum?
c) what is its change in momentum?
d) what is the magnitude of the force the car’s engine exerts?
e) what is the impulse for this problem?

What are the necessary conditions for fusion?

By what primary heat transfer mechanism does the sun warm the earth?

Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.6 m below the tank bottom which is a = 6.7 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute). report your answer in meters to two decimal places.