Consider two mercury barometers, one with twice the height of the other. Mercury level in the smaller tube will rise twice as high.            four times as high.      to the same height.         more than four times as high

A simple barometer will be tallest if it uses mercury.            water.    gasoline (which is less dense than water).       any of these liquids, for the height would be the same at sea level.

A scientist uses a mercury barometer to measure the atmospheric pressure at the top of a mountain. He finds that the height of mercury in the column is lower than it is at sea level. Which of the following best explains this finding?A.The atmosphere exerts more force on the mercury at the top of the mountain than at sea level.B.Due to the height, the force of gravity is stronger at the top of the mountain than at sea level.C.Mercury behaves as a more dense substance at the top of the mountain than it does at sea level.D.The atmosphere weighs less at the top of the mountain than it does at sea level.

a piston in a cylinder that is connected to a manometer. describe and explain what will happen to the difference in height between the two mercury level when more mercury is poured into the manometer, when the initial difference is 0.2 m

Mercury is a convenient liquid to use in a barometer because

Mercury is poured into a U-tube as shown in Figure a. The left arm of the tube has cross-sectional area A1 of 10.9 cm2, and the right arm has a cross-sectional area A2 of 5.20 cm2. Two hundred grams of water are then poured into the right arm as shown in Figure b.Figure (a) shows a U-shaped tube filled with mercury. Both arms of the U-shaped tube are vertical. The left arm with cross-sectional area A1 is wider than the right arm with cross-sectional area A2. The height of the mercury is the same in both arms. Figure (b) shows the same U-shaped tube, but now most of the right arm is filled with water. The height of the column of water in the right arm is much greater than the height of the column of mercury in the left arm. The height of the mercury in the left arm is greater than the height of the mercury in the arms in Figure (a), and the difference in height is labeled h.(a) Determine the length of the water column in the right arm of the U-tube. cm(b) Given that the density of mercury is 13.6 g/cm3, what distance h does the mercury rise in the left arm? Your response differs from the correct answer by more than 100%. cm