Paula has walked in a straight line, 30.5° north of west, for 1650 meters. How far south and east should she walks to return to her original location

A2 kg ball travellng to the right with a speed of 4 m/s collidees with a 5 kg ball traveling to the left with a speed of 3 m/s. take right to be the positive direction. what is the total momentum of the two balls before they collide? what is the total momentum of the two balls after they collide?

The speed of light can be used to measure the

A200 g lead frying pan gains 2000 joules of heat. what is the change in temperature