If a spacecraft travels 3.6 au per year, in how many years would it travel from earth to mars? a. 0.15 years b. 1.83 years c. 2.54 years d. 3.72 years

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.