What is the relationship between the intervals on the celsius scale and the kelvin scale

In a system, when potential energy decreases, then entropy also decreases. true false

Difference between series and parallel circuits

Abatter hits a 0.140-kg baseball that was approaching him at 30 m/s and, as a result, the ball leaves the bat at 40 m/s in the reverse of its original direction. the ball remains in contact with the bat for 2.0 ms. what is the magnitude of the average force exerted by the bat on the ball?