A positive charge 1 = +4.8×10-4 C is held at a fixed position. A small object with mass 3.6 g and charge 2 = +2.6×10-4 C is projected directly at 1. Ignore gravity. When 2 is at point A, a distance 4.11 m away from 1, its speed is 740 m/s. How close (in meters) does 2 get to 1.

Pressure is a measure of force per unit area or p=f/ap=f/a. a student is checking the amount of pressure their car exerts upon the road. the car weighs 22 tons ( us short ton ). the student finds the dimensions of each tire's footprint on the road is 12.5 cm x 16.5 cm. in pounds per square inch (psi), what is the total pressure the car exerts upon the road?