In a one-dimensional elastic collision a ball of mass 0.51 kg, moving with velocity 6.4 m/s, strikes an initially stationary ball of mass 0.89 kg. Find the final velocity of the initially moving ball.

Which best describes how fluids change as they travel through different portions of the convection currents? they change to solids at the outer portion of the convection currents. they change to solids at the inner portion of the convection currents. they become more dense at the outer portion of the convection currents. they become more dense at the inner portion of the convection currents

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?

Acaterpillar tries to climb straight up a wall a meter high, but for every 2 cm up it climbs, it slides down 1 cm. eventually, it reaches the top. when it reaches the top, it does not pull itself over so it will slide down 1 cm. what is the total displacement traveled?