A 5 kg block is on a frictionless surface. A 15 N force is applied to the block in a direction parallel to the surface. what is the acceleration of the block? A. 3 m/s^2
B. 10 m/s^2
C. 20 m/s^2
D. 75 m/s^2

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.