Prairie dogs live in underground burrows with at least
twoentrances. they ventilate their burrows by building a mound
overone entrance. it is open to stream of air when a breeze blows
fromany direction. a second entrance at groung level is open
toalmost stagnant air. how does this construction create an air
flowthrough the burrow?

This is really important 1.which of the following prefixes represents the largest value? (2 points)gigahectorkilomilli2.which of the following types of graphs is best for plotting the mean, median, and mode of data? (2 points)bar graphbox-and-whiskercircle graphstem-and-leaf

What is the coefficient of kinetic friction μk between the block and the tabletop?

Consider a double atwood machine constructed as follows: a mass 4m is suspended from a string that passes over a massless pulley on frictionless bearings. the other end of this string supports a second similar pulley, over which passes a second string supporting a mass of 3m at one end and m at the other. using two suitable generalized coordinates, set up the lagrangian and use the lagrange equations to find the acceleration of the mass 4m when the system is released. explain why the top pulley rotates even though it carries equal weights on each side.