Shawn and his bike have a total mass of 57.3 kg. Shawn rides his bike 0.64 km in
14.6 min at a constant velocity.
The acceleration of gravity is 9.8 m/s2.
What is Shawn's kinetic energy?
Answer in units of J.

Cathy is pedaling down a steep hill on her bicycle and wants to be able to coast up the next hill, which is 25 meters high, without pedaling. cathy and her bicycle have a mass of 75 kg. assuming her bicycle is 100% efficient, what would her speed have to be?

Which of the following types of electromagnetic radiation has the longest wavelength? a. infrared light b. visible light c. ultraviolet light d. microwaves

Aball is thrown horizontally from a cliff at 8m/s .in what direction is the ball moving 2s later?