A ball of mass 0.40 kg travels horizontally and strikes a vertical wall with a speed of 5.0 ms–1. It rebounds horizontally with a speed of 3.0 ms–1. The ball is in contact with the wall for a time of 0.20 s. What is the average magnitude of the force exerted by the ball on the wall?

The extremely high temperatures needed to trigger nuclear fusion are proposed to be generated by laser irradiating a spherical pellet of deuterium and tritium fuel of diameter 1.8 mm. (a) determine the maximum fuel temperature that can be achieved by irradiating the pellet with 200 lasers, each producing a power of 550 w. the pellet has an absorptivity 0.3 and emissivity 0.8.

Explain why you think this diagram shows what happened to the carbon in the biodome.

By what factor does the drag force on a car increase as it goes from 65 to 110 km/h?