Determine the number of grams in 4.87 x 10^22 atoms of barium hydroxide Ba(OH)2' (fence post model)

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

Amap that uses a range of colors and shading to represent the elevation, depth, or landscape of specific features on earth is a/an map.

Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what  most likelyhappened? energy was created inside the blocks. energy was destroyed inside the blocks. energy was absorbed into the blocks from outside the system. energy was transferred from the warmer block to the cooler block.