Light is traveling in air at a speed of 300,000 km/s. which substance would cause the light to refract the least? a. ruby (speed of light = 170,000 km/s) b. glass (speed of light = 200,000 km/s) c. water (speed of light = 225,000 km/s) d. diamond (speed of light = 120,000 km/s)

A14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.

What causes the development of most clouds and precipitation in the atmosphere?

Atypical jetliner lands at a speed of 146 mi/h and decelerates at the rate of (10.4 mi/h)/s. if the jetliner travels at a constant speed of 146 mi/h for 1.5 s after landing before applying the brakes, what is the total displacement of the jetliner between touchdown on the runway and coming to rest?