Acharge of +2.00 x 10^-9 c is placed at the origin, and another charge of +4.50 x 10^-9 c is placed at x = 1.6 m. the coulomb constant is 8.98755 x 10^9 n m2/c2. find the point (coordinate) between these two charges where a charge of +3.70 x 10^-9 c should be placed so that the net electric force on it is zero.

What are the applications of electromagnetic waves

Aperson gives a shopping cart an initial push along a horizontal floor to get it moving, and then lets go. the cart travels forward along the floor, gradually slowing as it moves. consider the horizontal force(s) on the cart while it is moving forward and slowing. which of the following statements is correct? (a) both a forward and a backward force are acting on the cart, but the forward force is larger. (b) only a forward force is acting which diminishes with time. (c) both a forward and a backward force are acting on the cart, but the backward force is larger. (d) only a backward force is acting, no forward force.

Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0° to the ground. how long will the ball be in the air before it lands? how far will the football travel before it lands?