The frequency of a ray of light is 5.09 x 10^14 hertz. What is the ratio of the speed of this ray in diamond to its speed in zircon

World class speed skaters can skate a 3,000-m course in about 4 minutes.what is their average speed for this course? a. 12.5 m/sb. 1.33 m/sc. 1.25 m/sd. 13.3 m/s

Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.