How are the traditional types of energy resources acquired

What is the overall order of reaction for rate = k[no]2[o2]

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.

Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.