Two charged balloons 2.1 * 10è¹ meters apart have a repulsive force of 1.3 * 10è¹ newtons. the charge on one balloon is 8.2 * 10è¥ coulombs. what is the charge on the other balloon? (k = 9.0 * 10© newton·metersæ/coulombæ)

The two required components for a generator

Suppose a force of 60 n is required to stretch and hold a spring 0.1 m from its equilibrium position. a. assuming the spring obeys hooke's law, find the spring constant k. b. how much work is required to compress the spring 0.5 m from its equilibrium position? c. how much work is required to stretch the spring 0.6 m from its equilibrium position? d. how much additional work is required to stretch the spring 0.1 m if it has already been stretched 0.1 m from its equilibrium? a. kequals 600

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