Which statement describes an example of constructive interference? O A. Oil spilled in a water puddle shows different colors of light.
O B. A cell-phone signal is lost when you pass through a certain area.
O C. Two TV signals reach an antenna and cancel each other out.
D. Light forms bars on a surface after passing through two slits.

second mirror gathers light from a faraway object and reflects it to another mirror. - a.

"i have always loved contemporary art and made it a general goal to work within the field. after a few nonprofit internships at museums and galleries, i decided to try the for-profit art world and was offered a job as the ad assistant at the magazine. i much prefer the pace of the for-profit art community and have stayed with the company for three years, with a promotion to an account manager last spring."

i just did this and got a 100.

unlike poles attract

double the distance = divide strength by 4