When light hits a mirror it bounces off of it. this is why you can see yourself in a mirror. this property of light is a) absorption. b) reflection. c) refraction. d) transparent.

What is the final velocity of the initial velocity of 25 and -50?

Will give brainpower answer if answered all correctly!

Working alone at its constant rate, pump x pumped out ¼ of the water in a tank in 2 hours. then pumps y and z started working and the three pumps, working simultaneously at their respective constant rates, pumped out the rest of the water in 3 hours. if pump y, working alone at its constant rate, would have taken 18 hours to pump out the rest of the water, how many hours would it have taken pump z, working alone at its constant rate, to pump out all of the water that was pumped out of the tank? a) 6b) 12c) 15d) 18e) 24