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Suppose that in an examination of a spinal injury it is found that the spinal fl

ID: 1267240 • Letter: S

Question

Suppose that in an examination of a spinal injury it is found that the spinal fluid (with about the same density as water) will rise a vertical height of 13. cm in an open tube. What pressure does this correspond to, expressed in mm of mercury and in atmospheres? A 500-N weight sits on the small piston of a hydraulic machine. The small piston has area 2.0 cm2. If the large piston has area 40 cm2, how much weight can the large piston support Which of the following is NOT a unit of pressure? inches of mercury N_m2 N.M atmosphere psi Pascal A rock is suspended from a scale reads 20.0 N. A beaker of water is raised up so the rock is totally submerged in the water. The scale now reads 12.5 N. What is the density of the rock?

Explanation / Answer

1) 1 mm of Hg ( mercury )

2) 1000 N

3)N- m^2

4) 2.67 gm/cm^3 or 2600 kg / m^3

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