A cement truck has a mass of 42,000 kg and travels at a velocity of 18m/s. How fast a 10, 750 kg bus travel to have[..]

A 500kg gun fires a 1.5 kg shell with a muzzle velocity of 650 m/s. a. Find the recoil velocity of the gun. b. If[..]

A baseball player strikes a 0.25 kg ball moving at 15m/s and sends it backward with a velocity of 25m/s. The ball is[..]

An empty railway car of mass 15,000 kg is coasting at 3.5 m/son a level track. A load of 5000 kg of coal is dropped[..]

A 50kg ballet dancer makes a leap to the left at a speed of 5m/s on to the arms of her partner at rest.The male[..]

. A ball of mass 1kg moving to the left at a speed of 25 m/s suffers an elastic collision with a fixed vertical wall[..]

If the sum of two consecutive integers is 86, what are the two integers?

If country A has 160,850 million more computers than country B and the total number of computers for both countries[..]

what is the rate of discount on dvd player having a marked price $240 but sold for $216?

the rectangular base of a box has a perimeter of 2 feet.the base is twice as long as it is wide.Victoria plans to[..]