According to the law of conservation of energy, when a lawnmower uses 750 J of chemical energy from gasoline, how much of this e

Question

Dmitry [639]

3 years ago

11

According to the law of conservation of energy, when a lawnmower uses 750 J of chemical energy from gasoline, how much of this e

nergy will be transformed into mechanical, sound, or heat energy?

Physics

2 answers:

cestrela7 [59] · Answer 1 · 2022-08-13T14:03:05+03:00

cestrela7 [59]3 years ago

8 0

Since the energy is conserved, it's not lost, it's conserved. so the 750J of chem should go into cutting the grass, making a noise whilst doing so, and getting warm whilst doing so. How much into which is presumably decided by the (efficient ?) design of the machine.

steposvetlana [31] · Answer 2 · 2022-08-13T11:38:29+03:00

steposvetlana [31]3 years ago

6 0

Energy is neither created nor destroyed

E in = E out
750 J in so 750 J out