What is meant by coefficient of something like there are coefficient of thermal conductivity and so on.

All the simple machines make work easier to do by changing the or of a force. a. size; type b. work; type c. size; direction d. type; direction

Awave has a wavelength of 7 mm and a frequency of 19 hertz. what is its speed?

Which phrase describes the paleo-indians of prehistoric arkansas? a. grew cornb. lived in cliff dwellings c. crafted beautiful potteryd. hunted with stone-tipped spearswhich phrase describes native arkansas from the woodland traditiona. developed widespread agricultureb. hunted mastodon and woolly mammothc. built rectangle-shaped homesd. traded salt with other groups