If gravity puts a force of 3n an object, how much force would it put on an second object that was twice as heavy

Two point charges are on the y axis. a 3.90-µc charge is located at y = 1.25 cm, and a -2.4-µc charge is located at y = −1.80 cm. (a) find the total electric potential at the origin. v (b) find the total electric potential at the point whose coordinates are (1.50 cm, 0). v

Select the correct answer. what does the process of natural selection involve?

How can you measure the amplitude of a longitudinal wave?