• Usain Bolt can run at 10 m/s. If he runs for about 20 seconds, how far around the race track did he go?

The specific heat of silver is 0.057 calories/gram°c. if 10.0 grams of silver were heated and the temperature of the sample changed by 20.0°c, how many calories of heat energy were absorbed by the sample?

1. a net force of 100 newton’s is applied to a wagon for 5 seconds. this causes the wagon to undergo a change in momentum of

How can you increase the strength of an electromagnet?