A 65 kg football player is running to the right with a velocity of 4.4 m/s when he catches a 0.75 kg ball that is moving at 26 m/s to the right. What is the velocity of the player/ball after he catches it?

Which of the following is a characteristic shared by both electron and light microscopes? a. they both employ the use of objective lenses. b. both microscopes require an internal camera to visualize the specimen. c. both microscopes have a resolving power of 0.01 nm. d. they both utilize white light to magnify the specimen.