Which of the following is true of perpetual energy?

A. It is everlasting.
B. There is no perpetual energy device today.
C. A machine or device cannot produce more energy than it consumes.
D. All of the above


Answer: D

Trades & Technology

You might also like to view...

What are the chemical components of HFC refrigerant?

A) Hydrogen, fluorine, and carbon B) Hydrogen, Freon, and chromium C) Helium, Freon, and chlorine D) Helium, fluorine, and chlorine

Trades & Technology

A ____ consists of steel plates bolted between wood members.

A. full beam B. buttress beam C. flitch beam D. strut beam

Trades & Technology

The formula for a building area in square feet  is A=________.

Fill in the blank(s) with the appropriate word(s).

Trades & Technology

To prevent a tipover when driving a rough terrain forklift, keep the load _____

a. light b. low c. high d. heavy

Trades & Technology