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Chapter 14: Q. 32 (page 385)
A 70 kg mountain climber dangling in a crevasse stretches a 50-m-long, 1.0-cm-diameter rope by 8.0 cm. What is Young鈥檚 modulus for the rope?
Young's modulus of the rope is.
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What is the volume in mL of 55 g of a liquid with density 1100 kg/m3?
Postural hypotension is the occurrence of low systolic blood pressure when a person stands up too quickly from a reclining position. A brain blood pressure lower than of can cause fainting or lightheadedness. In a healthy adult, the automatic constriction and expansion of blood vessels keep the brain blood pressure constant while posture is changing, but disease or aging can weaken this response. If the blood pressure in your brain is of while lying down, what would it be when you stand up if this automatic response failed? Assume your brain is from your heart and the density of blood is.
A research submarine has a 20-cm-diameter window 8.0 cm thick. The manufacturer says the window can withstand forces up to 1.0 * 106 N. What is the submarine鈥檚 maximum
safe depth? The pressure inside the submarine is maintained at 1.0 atm.
Cylinders A and B have equal heights. Cylinder A is filled with helium gas at 1.0 atm pressure and 0 oC. The diameter of cylinder B is half that of cylinder A, and cylinder B is filled with glycerin. What is the ratio of the fluid mass in cylinder B to that in cylinder A?
What does the top pressure gauge read in
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