If a bike rider slows from 7.0m/s to 2.0m/s in 4.90s, what is the bike riders acceleration?

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n

How are positive ions different from neutral atoms

Newtons view of arrangement of the universe. don't copy from anywhere.