The conversation of thermal energy into mechanical energy requires a

In other words, the second law of thermodynamics states that in order to convert thermal energy to mechanical energy, there must be a temperature differential. ... Devices used to convert thermal energy to mechanical energy are called heat engines.

Explanation:

answer; (you have the right of way);

local max is .5

step-by-step explanation:

the local maximum is for x values between 2 and 4

it looks like the x value is 2.5 and the y value is .5