For a wave of wavelength 4 m and frequency 8 waves/sec., a. amplitude = 32 m.

b. amplitude = 0.5 m.

c. speed =32 m/sec.

d. speed = 2 m/sec.
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Avertical clean glass piezometer tube has an inside diameter of d = 1 mm and is used to measure pressure in a horizontal pipe carrying water as shown. due to pressure in the pipe, the water at 20c rises into the tube to a height h. if the water pressure in the pipe is p = 500 pa gauge, estimate the height h: (a) without considering surface tension (b) with surface tension (capillary) effects. the contact angle  can be assumed at 30 deg