A30-kg child sits at the top of a 3-meter slide. after sliding down, the child is traveling 4 m/s. how much pe does he start with? how much ke does he end with? how much energy is lost to friction?

Prompta snowboarder stands at the top of a hill and decides to see if he can increase his speed on his next trip down the slope.describe one thing the snowboarder could do to incrlase his speed on the slope. explain why this would cause his speed toincrease relate one of newton's laws to this problem.

The heliocentric and the geocentric models of the solar system included these central principles

Acapacitor is storing energy of 3 joules with a voltage of 50 volts across its terminals. a second identical capacitor of the same value is storing energy of 1 joule. what is the voltage across the terminals of the second capacitor?