Rotational kinetic energy is the form in which energy can be stored most effectively in these flywheels. As such, a company designing a flywheel would want to choose a system in which rotational kinetic energy would be maximized. In a system like the one you explored in Lab 05A, one of the easiest parameters to change is the size of the pulley around which the string is wrapped. Your goal is to determine what size pulley would be optimal for generating -- and thus storing -- the maximum amount of rotational kinetic energy.

Look at the potential energy diagram for a chemical reaction. which statement correctly describes the energy changes that occur in the forward reaction?

Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix. b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds. c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer. d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.

What are two different ways you could find the value of a? explain these methods.