Question

blood pressure is expressed in millimeters of mercury because mercury is so dense it enables pressure to be measured with shorter columns. true or false true false

Explanation:

Mercury's high density means that for a given pressure, the height of the mercury column is shorter compared to a less - dense fluid. This makes it more practical for measuring blood pressure (which is a relatively low - pressure measurement in the context of fluid columns). For example, if we used water (which is much less dense than mercury), the column height required to measure the same pressure would be extremely long (since pressure \(P =
ho gh\), and for a given \(P\), \(h=\frac{P}{
ho g}\), a larger \(
ho\) (density) gives a smaller \(h\) (height)).

Answer:

True