Cate and Elena were playing a card game. The stack of cards in the middle had 25 cards in it, to begin with. Cate added 9 cards to the stack. Elena then took 12 cards from the stack. Finally, Cate took 5 cards from the stack. How many cards were left in the stack?

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

The pressure, volume, and temperature of a mole of an ideal gas are related by the equation pv = 8.31t, where p is measured in kilopascals, v in liters, and t in kelvins. use differentials to find the approximate change in the pressure if the volume increases from 14 l to 14.6 l and the temperature decreases from 375 k to 370 k. (round the answer to two decimal places.)

Blank liquids and gases exert a buoyant force on objects placed in them