A circular swimming pool has a diameter of 10 meters. The sides are 4 meters high. And, the depth of the water is 3.5 meters. How much work is required to pump all of the water over the side? Recall that water weighs 9810 N/m3

What happens in a global convection cell

*drag each tile to the correct location in the sequence* the table shows chronological events in the life of our sun, a medium-sized star. place the missing events into the correct rows of the table.

Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.