Chapter 14: Q. 2 (page 383)
Rank in order, from largest to smallest, the pressures at a, b, and c in FIGURE Q14.2. Explain.
The pressure in the decreasing order as Pb > Pc> Pa
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Rank in order, from largest to smallest, the pressures at d, e, and f in FIGURE Q14.2. Explain
A sphere completely submerged in water is tethered to the bottom with a string. The tension in the string is one-third the weight of the sphere. What is the density of the sphere?
A friend asks you how much pressure is in your car tires. You know that the tire manufacturer recommends , but it's been a while since you've checked. You can't find a tire gauge in the car, but you do find the owner's manual and a ruler. Fortunately, you've just finished taking physics, so you tell your friend, "I don't know, but I can figure it out." From the owner's manual you find that the car's mass is. It seems reasonable to assume that each tire supports one-fourth of the weight. With the ruler you find that the tires are wide and the flattened segment of the tire in contact with the road is long. What answer-in psi-will you give your friend?
A 1.0-m-diameter vat of liquid is 2.0 m deep. The pressure at the bottom of the vat is 1.3 atm. What is the mass of the liquid in the vat?
A wire is stretched right to the breaking point by a 5000 N force. A longer wire made of the same material has the same diameter. Is the force that will stretch it right to the breaking point larger than, smaller than, or equal to 5000 N? Explain.
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