Two cars collide at an icy intersection and stick together afterward. The first car has a mass of 1050 kg and was approaching at 9.00 m/s due south. The second car has a mass of 800 kg and was approaching at 22.0 m/s due west. (a) Calculate the final velocity of the cars. Magnitude & Direction. (b) How much kinetic energy is lost in the collision? (This energy goes into deformation of the cars.)

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

What is the most useful equation for electric power?

Asap and show ! a 14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.