Acarnival ride has a 2.0m radius and rotates once each .90s. find the centripetal acceleration

Which is not a characteristic of a heat pump? a. it is used in air conditioners. b. it uses a refrigerant. c. it requires no work. d. it reverses the normal flow of thermal energy.

If angle "a" is 25°, angle "b" is: a) equal to angle c b) less than angle c c) greater than angle c

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell