A 150 g copper bowl contains 180 g of water, both at 20.0°C. A very hot 470 g copper cylinder is dropped into the water,
causing the water to boil, with 17.5 g being converted to steam. The final temperature of the system is 100°C. Neglect
energy transfers with the environment. (a) How much energy is transferred to the water as heat? (b) How much to the
bowl? (c) What is the original temperature of the cylinder? The specific heat of water is 1 cal/g. k, and of copper is 0.0923
cal/g. K. The latent heat of vaporization of water is 539 Cal/kg.

What sort of waves exhibit the doppler effect?

Amoving company collects data about couches they move and displays the data in a table. the force along the ramp, the angle of the ramp, and the height the couch is raised to are shown. which statements correctly compare the work done to move the couches? check all that apply. the same amount of work is done for couches 1 and 3. the same amount of work is done for couches 2 and 3. the work for couch 1 is greater than the work for couch 2. the work for couch 2 is less than the work for couch 3. the work for couch 3 is greater than the work for couch 1. the work for couch 2 is greater than the work for couch 1.

Ben (55kg) is standing on very slippery ice when junior (25kg) bumps into him. junior was moving at a speed of 8 m/s before the collision and ben and junior embrace after the collision. find the speed of ben and junior as they move across the ice after the collision. give the answer in m/s. describe the work you did to get the answer.