Which example best demonstrates how unbalanced forces change the speed of an object's motion? a) a child on a bicycle braking at a stop sign. b) a child singing a song. c) a child sitting in a chair reading a book. eliminate d) a child walking around the corner of a school hallway.

Find the volume of the ellipsoid x^2+y^2+5z^2=36.

How much energy is supplied to each coulomb of charge that flows through a 12-v battery?

On a horizontal frictionless surface, a small block with mass 0.200 kg has a collision with a block of mass 0.400 kg. immediately after the collision, the 0.200 kg block is moving at 12.0 m/s in the direction 30° north of east and the 0.400 kg block is moving at 11.2 m/s in the direction 53.1° south of east. use coordinates where the +x-axis is east and the +y-axis is north.(a) what is the total kinetic energy of the two blocks after the collision (in ) what is the x-component of the total momentum of the two blocks after the collision? (indicate the direction with the sign of your ) what is the y-component of the total momentum of the two blocks after the collision? (indicate the direction with the sign of your answer.)