A racecar driver has a car that accelerates 5 m/s2. If the car has a mass of 856 kg, how much force does the car produce?

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.

Which of the following represents the ester functional group? a. -coo- b. -cho c. -cooh d. c=o

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.