University:
Purdue University
Course:
PHYS 21800 | General Physics
Academic year:

2023
Views:

284

Pages:

1
Author:

Prince Sampson

Refer to (Figure 1). Rank in order, from largest to smallest, the pressures at D, E, and F. Rank from largest to smallest. To rank items as equivalent, overlap them. The highest that George can suck water up a very long straw is 2.0 m . (This is a typical value.) What is the lowest pressure that he can maintain in his mouth? Express your answer in kilopascals. A 10cm×10cm×10cm wood block with a density of 660 kg/m3 floats in water. What is the distance from the top of the block to the water if the water is fresh? If it's seawater? Suppose that ρ=1030kg/m3 . A research submarine has a 40-cm-diameter window that is 8.5 cm thick. The manufacturer says the window can withstand forces up to 1.1×106 N . What is the submarine's maximum safe depth in sea water? The pressure inside the submarine is maintained at 1.0 atm . A standard gold bar stored at Fort Knox, Kentucky, is 7.00 inches long, 3.63 inches wide, and 1.75 inches tall. Gold has a density of 19,300 kg/m3 . What is the mass of such a gold bar? The deepest point in the ocean is 11 km below sea level, deeper than Mt. Everest is tall. What is the pressure in atmospheres at this depth? Calculate the buoyant force due to the surrounding air on a man weighing 800 N . Assume his average density is the same as that of water. Suppose that the density of air is 1.20 kg/m3 .

General Physics Homework 37

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