How many uranium atoms are there in 9.2 g of pure uranium? The mass of one uranium
atom is 4 × 10−26 kg.

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter

A58-kg boy swings a baseball bat, which causes a 0.140-kg baseball to move toward third base with a velocity of 38.0 m/s.

Greg drew a diagram to compare two of the fundamental forces. which labels belong in the areas marked x, y and z? gravitational force electromagnetic force x. attractive y repulsive z: infinite range x: infinite range y attractive z. repulsive x. always attractive y: infinite range z: attractive or repulsive x. attractive or repulsive y infinite range z: always attractive