What is an accurate definition of a heat engine? a. a system that converts mechanical energy into thermal energy b. a system that creates thermal energy from the sun c. a system that converts thermal energy into other useful forms of energy d. a system that disperses mechanical energy into various reservoirs

C

Explanation:

C. a system that converts thermal energy into other useful forms of energy

from 1609, galileo galilei used the recently invented telescope to observe the sun, moon and planets. he saw the mountains and craters of the moon, and for the first time revealed the planets to be worlds in their own right. galileo also provided strong observational evidence that planets orbited the sun.

his discoveries about the moon, jupiter's moons, venus, and sunspots supported the idea that the sun - not the earth - was the center of the universe, as was commonly believed at the time.galileo turned his gaze toward venus, the brightest celestial object in the sky - other than the sun and the moon.

another example of kinetic energy would be,

kinetic energy   >     moving energy

answer   >   letter choice (c),   a hammer falling off a table.

hope that !                                         : )