Mrs. Frizzle is standing on a scale that is on the magical school bus. The bus is moving straight upward with a small constant speed. If Mrs. Frizzle
weighs 850 Newtons when at rest in her classroom, how much does she
weigh when on the bus?

4. who was the first one to measure the speed of light and conclude that it is finite? 5. who was the first philosopher who thought the speed of light is finite? 13. what is the speed of light numerically? 14. give an example of something moving faster than light 15. give an example for some particles or waves that

The position of a crate sliding down a ramp is given by x=(0.05t^3) m, y=(1.7t^2) m, z=(6−0.85t^5/2) m, where t is in seconds. (a) determine the magnitude of the crate's velocity when t = 2 s. (b) determine the magnitude of the crate's acceleration when t = 2 s.

What is the speed of an object at a given moment?