The u. s. navy has a system for communicating with submerged submarines. the system uses radio waves with a frequency of 76s^-1. what is the wavelength of the radiation in meters? in miles?

Water molecules have a strong attraction to each other because of hydrogen bonding, allowing water to move against gravity up a plant's stem through capillary action. true false

Which statement best describes the oxidation numbers of the atoms found in magnesium chloride? a. magnesium has a 2- oxidation number and chlorine has a 1+ oxidation number. b. magnesium has a 2- oxidation number and chlorine has a 2+ oxidation number. c. magnesium has a 2+ oxidation number and chlorine has a 1- oxidation number. d. magnesium has a 1+ oxidation number and chlorine has a 1- oxidation number.

1) these are barrel shaped microtubules in most animal cells, that organize the spindles during cell division