A2-kg bowling bowl sits on top of a building that is 40 meters tall. what is the gravitational potential energy (gpe) of the bowling ball? a 2-kg bowling ball rolls at a speed of 10 m/s on the ground. what is the gpe and the ke (kinetic energy) of the bowling ball? solve for both gpe and ke will mark !

In a sample of oxygen gas at room temperature, the average kinetic energy of all the balls stays constant. which postulate of kinetic molecular theory best explains how this is possible? a. attractive forces between gas particles are negligible because the particles of an ideal gas are moving so quickly. b. collisions between gas particles are elastic; there is no net gain or loss of kinetic energy. c. gases consist of a large number of small particles, with a lot of space between the particles. d. gas particles are in constant, random motion, and higher kinetic energy means faster movement.

Asolution contains 225 g of sodium chloride, nacl, dissolved in enough water to make a 0.25 l of solution. what is the molarity of the solution? a. 3.88 m, b. 1.03 m, c. 1.5 m, d. 15.5 m

Which of the following is most likely true about water in chemical solutions?