Select the statements that correctly describe how a barometer measures pressure. Select all that apply. Multiple select question. Pressure exerted by the atmosphere is equal to pressure exerted by the column of mercury. The diaphragm changes shape in response to exerted pressure. The pressure exerted by an enclosed gas is equal to the height difference of a column of mercury in a U-tube. A column of mercury inverted in a dish of mercury measures pressure exerted on the open surface of th

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

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