11. How much power does a machine have it it does 100J of work in 20 seconds?

Please show work

An asteroid is discovered in a nearly circular orbit around the sun, with an orbital radius that is 2.47 times earth's. what is the asteroid's orbital period, its "year," in terms of earth years?

Which body part transports oxygen removes waste materials in carries nutrients to the body as part of the circulatory system

Frequency of electromagnetic waves that a radio station is assigned is called