1. The sun doesn't go anywhere. It seems to leave because the Earth is
and sometimes we face the sun and sometimes we don't.

Which of the following represents a virtual image?

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.

1. a net force of 100 newton’s is applied to a wagon for 5 seconds. this causes the wagon to undergo a change in momentum of