His the bottom, or lowest point, of a wave.

Aplane travels 1000 miles in 5 hours .what is the planes average speed?

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final

Looking at this barometer, is the air pressure high or low? what type of weather would you expect? high, bad low, bad high, good low, good