A box is on someone's hand and it's mass is0.57kg if you push the box upward with a force of 8.4N what is the normal force acting on the box?

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.