An athlete runs a 100 m race in 10 seconds against a friction force of 100N. How do I work out his power output?

A train travels towards the west 1020 with in 12 hours of what is the train's speed

A ball is traveling at 60m/s, then increases to 90m/s in 3 second, what is the average velocity?

The frequency of which type of eletromagtic wave i just higher than that of visible light

What is the middle layer of the sun atmosphere

The spin cycles of a washing machine have two angular speeds, 436 rev/min and 605 rev/min. the internal diameter of the drum is 0.420 m.

Which of the following statements are correct? 1. Electrons and protons have identical masses but opposite charges. 2. Most of an atom's mass is concentrated in a small, positively charged, nucleus. 3.

What are some changes that can be caused by sound energy?

A cheetah can run at 30 m/s, but only for about 12s. How far will it run in that time

A car is traveling 80 km/h if the car's speed remains constant how far will it have traveled in 3 hours a. 3km b. 26.7km c. 80 km d. 240 km

True or False? Gases such as water vapor condense when they are * heated*.