Asmall car traveling with 5,000 kgm/s hits a light truck that was at rest at a red light. after the collision the small car bounces backwards with a momentum of 3,000 kgm/s. what would the momentum of the truck be after the collision?

Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.

An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.

Why is the use of carbon-14 limited