A 0.10 kg piece of copper, initially at 95 °C, is dropped into 0.20 kg of water contained in a 0.28-kg aluminum calorimeter; the water and calorimeter are initially at 15 °C. What is the final temperature of the system?

Imagine you had to physically add electrons, one at a time, to a previously neutral conductor. you add one electron very easily, but the second electron requires more work. in your initial post to the discussion, explain why this is. also, what happens to the work needed to add the third, fourth, fifth, and subsequent electrons

Atank has a shape of a cone with a radius at the top of 2 m and a height of 5 m. the tank also has a 1 m spout at the top of the tank. the tank is filled with water up to a height of 2 m. find the work needed to pump all the water out the top of the spout. (use 9.8 m/s2 for g and the fact that the density of water is 1000 kg/m3.)

Which is the most accurate name for the covalent compound p2o3?