What is the same person's mass on mars, where the acceleration due to gravity is 3.7 m/s2?

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.

2) why do satelites not fall while revolving around the earth?

Can anyone plz answer any of these. even if its one it will