What is being described in the following definition: an opening in the floor, platform, or pavement that measures 12 inches or more, and through which persons may fall. a. floor hole b. floor opening c. wall opening d. railing

Asap time is ! best answer gets compose at least one well-developed paragraph on the following: define the term concurrent powers, and give an example of a concurrent power of government.

Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?

Acertain radio station broadcasts radio waves that have a wavelength of 298cm what is its broadcast frequency?