Which of these activities performed by a chemist is primarily based on an understanding of physics? A. using an indicator to determine if a solution is an acid, base, or neutral B. testing the molar concentration of a solution C. checking whether a given element is a metal or nonmetal D. predicting the volume of a gas, given its temperature and pressure

explanation:

newton's third law, for every action there is an equal and opposite reaction.

it's a b and

pythagoras' theorem

square root (-5^2+9^2)

square root (25+81)

square root (106)

angle is tan^-1(9/5)

neg x, pos y

the design of a ski jumping suit involves a trade-off between giving the skiers lift to get higher jumps and ensuring the skier does not face a lot of drag before the jump itself. an expansive suit may to lift the skier higher, but at the same time, it will also increase the air resistance. higher air resistance as the skier goes down the slope limits the speed of the jump. a big suit also increases the risk of losing balance or control, especially if there's a strong gust of wind. while technologically enhanced suits a lot, clothing is not the only factor in a ski jumper’s success. gathering speed while skiing down the slope, ensuring good speed on the ramp, and maintaining good body posture and form in the air all contribute to a ski jumper's success.