Which of the following elements has the smallest atomic radius? carbon nitrogen oxygen fluorine

Avalue that describes how heavy an object is and is related to the force of gravity is

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

The energy equivalent of the rest mass of an electron is