ANSWER CORRECTLY FOR BRAINLIEST U=Q-W

Note: if thermal energy is lost by a system or if work is done to a system q or w need to be negative

if thermal energy is added to a system or if work is done by a system q and w will be positive

200J of thermal energy are added to a system, 50J of work are done to the system, Later, 75J of thermal energy are lost by a system and 50J of work are done by a system. what is the change of internal energy of the system.

the results is a decrease in air temperature with an increase of altitude.

explanation:

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.