Arailroad car moving at a speed of 3.41 m/s overtakes, collides, and couples with two coupled railroad cars moving in the same direction at 1.40 m/s. all cars have a mass of mass 1.07 x 10^5 kg. determine the following. (a) speed of the three coupled cars after the collision (give your answer to at least two decimal places.) (b) kinetic energy lost in the collision

Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer

Aforce of 100 newtons is used to move an object a distance of 15 meters with a power of 50 watts. find the work dine and the time it takes to do the work

Adisk with a radius of r is oriented with its normal unit vector at an angle q with respect to a uniform electric field. which of the following would result in an increase in the electric flux through the disk? check all that apply? a. increasing the area of the disk b. decreasing the given orientation angle of the disk c. decreasing the strength of the electric field d. increasing the given orientation angle of the disk, but not exceeding an angle of 90