What is the momentum of a 0.5 kg ball which is thrown at 20 m/s?

A mother and daughter are on a seesaw in the park. How far from the center must the 111 lb mother sit in order to balance the 65 lb daughter sitting 8 ft from the center?

A storm is moving at 15 km/hr what to do to determine its velocity

The climber dropped her compass at the end of her 240-meter climb. How long did it take to the strike bottom?

A sample of the inert gas krypton has its pressure tripled. if the original volume is 12 l, what is the final volume in l

A balloon is released from the top of a building. the graph shows the height of the balloon over time. what does the slope and y-intercept reveal about the situation? A. the balloon starts at a height of 0 ft and rises at a rate of 100 ft. B.

A space probe produces a radio signal pulse. If the pulse reaches Earth 12.3 seconds after it is emitted by the probe, what is the distance from the probe to Earth?

Do substances that heat up quickly have high or low specific heat capacity?

A substance has a specific heat of 0.870 J/g°C. It requires 2,000.0 joules to increase the temperature of 10.0 grams of the substance from its original temperature to its final temperature. By how many degrees did the substance increase? A 87.

How many earth years does it take mars to orbit the sun

Which represents a system that is almost completely closed?