Find the acceleration of a runner that goes from 2 ft/s to 20 ft/s in a matter of 3 s. Work this problem out on paper (show all of your work - there are
nine steps as shown in the example above if you count the picture as a
step). Type the final answer below and make sure to include the units in the
answer. *

Spend time observing or thinking about events that involve matter and energy. which events can you explain? which events can’t you explain?

Agas initially at p1 = 1 bar and occupying a volume of 0.5 liter is compressed within a piston–cylinder assembly to a final pressure p2 = 4 bar. (a) if the relationship between pressure and volume during the compression is pv = constant, determine the volume, in liters, at a pressure of 3 bar. (b) repeat for a linear pressure–volume relationship between the same end states. reference

In a set amount of time, a battery supplies 25j of energy to an electric circuit that includes two different loads. one of the loads produces 10 j of heat energy during this time interval. how much heat energy is produced by the second load in this time? explain your answer