21. The speed of light is approximately 3.00 x 108 m/s. What is the speed of light in miles per hr?

What is relative velocity? in which condition is relative velocity known by adding the velocity of the first body and that of the second body

Name the non metal condut electricity

You are driving directly behind a pickup truck, going at the same speed as the truck. a crate falls from the bed of the truck to the road. (a) will your car hit the crate before the crate hits the road if you neither brake nor swerve? (b) during the fall, is the horizontal speed of the crate more than, less than, or the same as that of the truck?