A Carnot engine has an efficiency of 35.2% when the hot reservoir temperature is 767°C.
If we want to improve the efficiency to
30.1%, what should be the temperature of
the hot reservoir, assuming everything else
remains unchanged?
Answer in units of °C.

What is the maximum acceleration of the wing tips, in units of g?

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?

Point charges q1 = 51 µc and q2 = −27 µc are placed 1.0 m apart, with q2 on the right. what is the force (in n) on a third charge q3 = 19 µc placed midway between q1 and q2? (assume the positive direction is to the right. indicate the direction with the sign of your answer.)