4. From the following list, choose the option that describes the
fraction of the electromagnetic spectrum that is visible.210
a. more than 1/2
b. about 1/2
c. 1/4–1/2
d. 1/10–1/4
e. much less than 1/10

The difference between two numbers is 15. when twice the smaller number is subtracted from three times the larger number, the difference is 58.what is the larger number?

The discovery of the electron as a subatomic particle was a result of

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.