Doubly ionized lithium li2+ (z = 3) and triply ionized beryllium be3+ (z = 4) each emit a line spectrum. for a certain series of lines in the lithium spectrum, the shortest wavelength is 40.5 nm. for the same series of lines in the beryllium spectrum, what is the shortest wavelength?

Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.

One number is said to be an "order of magnitude" larger than another number if choose one: a. it is 10 times larger. b. it is 5 times larger. c. it is 3 times larger. d. it is 100 times larger. e. it is 2 times larger.

By what factor does the drag force on a car increase as it goes from 65 to 110 km/h?