Chloe is a champion softball batter. In a recent game, the pitcher threw the 181-g softball at Chloe and when it was 1.5 m above the ground it had a speed of 15.0 m s-1. Chloe hit the ball so hard that it cleared the outfield fence. At one point in its trajectory, the ball was 28.8 m above the ground and moving with a speed of 19.7 m/s. Calculate the work that Chloe did on the softball.

If jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, is being done.

During the experiment if you could triple the breakaway magnetic force with all other quantities left unchanged, what is the new value for the critical velocity if it was v0 (initial velocity), initially? (b) now if you halved the radius with all other quantities left unchanged, what is the new critical velocity if it was v0 (initial velocity), initially? (c) if during the experiment, critical velocity quadrupled with all other quantities left unchanged, what is the new breakaway force if its magnitude was initially f0,?

Should we celebrate the voyages of zheng he mini q answer key