What are the two things that size, or magnitude of centripetal acceleration depend on ?

How are the crust and the inner core alike? a) they are both solid. b) they both have the same temperature. c) they are both under the same pressure. d) they are both very close to the center of the earth.

Wavelength of 125 meters is moving at a speed of 10 m/s. what is it's frequency?

Another word for electromagnetic energy is a. heat b. force c. matter d. radiation