In order to accommodate a larger volume of sample, a chemist scales up his experiment by doubling the diameter of his chromatography column while maintaining a constant length. given that the ratio of mobile phase volume to column volume remains constant, by what factor has the capacity of the column increased?

The answer should be a.

The particles of the gas inside the ball heats up, bouncing off each other and spreading farther apart.hope my answer has you : )

W= fd
where f is an applied force and d is the distance over which it is applied. when a parachuting skydiver is at constant velocity, he is experiencing "terminal velocity", the point at which his acceleration down is canceled out by air resistance. that means that the resisting force of the air is equal to his weight, but in the opposite direction. with this, we can solve for the work done by the force.
w = fd
w = (92.0)(9.81 m/s^2) (325)
w= 2.93 x 10^5 j
the value for work in this case is positive because it is pushing up on the skydiver, who has a downward force of gravity.
therefore the answer is 2.93 x 10^5 j