what is the impulse of a dodgeball hitting a person in the face if it's initial velocity was 10m/s and it's velocity after hitting him in the face is 5m/s? the ball weighs 3kg.

This chart shows characteristics of three different types of atoms. which statement is best supported by the information in the chart? atom x will donate electrons to atom y. atom x will accept electrons from atom y. atom y will accept electrons from atom z. atom z will donate electrons to atom x.

When you turn on a battery-operated device, an electrical circuit is

The boy of mass 30 kg is at r1= 2 meters from the fulcrum. of the girl is 45 kg, at what r2 must she sit so that they are balanced ?