In a waterfall, much of the energy of the falling water is converted into heat.
If all the mechanical energy is converted into heat that stays in the water, how
much of a rise in temperature occurs in a 100 m waterfall? For water,
c= 4.186 x 103 J/(kg . Cº).

Awater slide of length l has a vertical drop of h. abby's mass is m. an average friction force of magnitude f opposes her motion. she starts down the slide at initial speed vi. use work-energy ideas to develop an expression for her speed at the bottom of the slide. then evaluate your result using unit analysis and limiting case analysis. express your answer in terms of the variables h, m, l, vi, f and appropriate constants. vf v f

For waves in the ocean, the medium of the waves is a. air b. water c. energy d. a passing boat

What was the purpose of the apollo program? to put a man in orbit to launch a spy satellite to launch a space station to put man on the moon