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When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n

Which of the following are used in an electrochemical cell? a. electrodes b. electrolyte c. terminals d. all of the above