How much charge does a 9.0 v battery transfer from the negative to the positive terminal while doing 45 j of work?

Abaseball picther can throw a ball at about 90 miles per hour, v = 40 m/s, on solid rock ground. we now put him into space. when he throws the ball, which weighs mb = 0.15 kg moves away from himat the same speed. how long does it take the ball thrown in space to travel the 30 meters to the batter? he weighs mp = 100kg

What is the measure of a change in an objects velocity?

Discuss how the hardness or softness of the landing surface is related to the time required to stop the egg