You place a point charge q = -4.00 nc a distance of 9.00 cm from an infinitely long, thin wire that has linear charge density 3.00×10−9c/m. what is the magnitude of the electric force that the wire exerts on the point charge?

Two thin 80.0- cm rods are oriented at right angles to each other. each rod has one end at the origin of the coordinates, and one of them extends along the x- axis while the other extends along the yaxis. the rod along the x- axis carries a charge of - 15.0 μ c distributed uniformly along its length, and the other rod carries 15.0 μ c uniformly over its length. find the magnitude and direction of the net electrical force that these two rods exert on an electron located at the point (40.0 cm, 40.0 cm). (e

At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid

Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car