What forces do work on this system?
A) A frictionless pulley has the shape of a uniform solid disk of mass 6.00 kg and radius 16.0 cm .
B) A 1.30 kg stone is attached to a very light wire that is wrapped around the

On his honeymoon, james joule attempted to explore the relationships between various forms of energy by measuring the rise of temperature of water which had fallen down a waterfall on mount blanc. what maximum temperature rise would one expect for a waterfall with a vertical drop of 20 m? the specific heat of water is 4186 j/kg ∙ k. a)0.064 c° b)0.053 c° c)0.071 c° d)0.047 c°