A 1000kg car is travelling at 5 m/s. What is its momentum?

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.

What is happening when the water inside a kettle heats up and begins to boil

How do you determine the percent yield of a chemical reaction