a bucket is lifted out of a well by a small gas powered engine and the buckets potential energy changes from 2.0 kJ to 110 kJ in 2.2 seconds what power did the engine use on the bucket

According to the phase diagram for water, how is the state of water determined? proceed up a vertical line at any given temperature read the phase at the intersection of any given temperature and pressure at a given pressure, proceed horizontally to the s-l or l-g line

Heat from the sun reaches earth to a. radiation b. convection c. conduction

Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies.