Answer:
your answer should be B ANDC
Which device is designed to produce mechanical energy?
Well, mechanical energy is the sum of potential and kinetic energy. Kinetic energy is a unit of energy in which is the reason why an object does movement, while potential energy is another unit of energy in which is the reason why an object doesn't move, or stops. While you can stop a fan or a lamp, it isn't automatic. It's manually. So the answer is (4) an oven because mechanical energy happens automatically, not manually, or for a greater reason.
Answer:
The element that is commonly used to reduce iron oxide would be <u>carbon.</u>
Explanation:
:)
Diamond is the hardest naturally occurring substance found on Earth.
