Amotorcycle running on gasoline wastes a large amount of energy mainly as a) heat energy and sound energy. b) light energy and kinetic energy. c) heat energy and chemical energy. d) sound energy and chemical energy.

Why is alternating current more effective at long–distance travel than direct current? a. the power lines are made out of conductors. b. transformers increase or decrease voltage as needed. c. the ac generator is more efficient. d. ac has lower voltage than dc.

What is a carrier wave and how does it affect what you hear on the radio

What changes occur in the brain during the teenage years? 25 points, someone me out!a.) thinking becomes slower as the brain grows larger. b.) connections between neurons become stronger and faster. c.) unused neurons fuse together to form larger, better functioning neurons. d.) more neurons are developed.