How much pressure is exerted on a submarine at a depth of 8.50km in the Pacific

Question

How much pressure is exerted on a submarine at a depth of 8.50km in the Pacific Ocean? (The density of seawater = 1.025 ´ 103 kg/m3,and the atmospheric pressure atsea level = 1.01 ´ 105 Pa.) a. 8.6 ´ 105 Pa c. 8.7 ´ 106 Pa b. 9.5 ´ 106 Pa d. 8.6 ´ 106 Pa How much pressure is exerted on a submarine at a depth of 8.50km in the Pacific Ocean? (The density of seawater = 1.025 ´ 103 kg/m3,and the atmospheric pressure atsea level = 1.01 ´ 105 Pa.) a. 8.6 ´ 105 Pa c. 8.7 ´ 106 Pa b. 9.5 ´ 106 Pa d. 8.6 ´ 106 Pa a. 8.6 ´ 105 Pa c. 8.7 ´ 106 Pa b. 9.5 ´ 106 Pa d. 8.6 ´ 106 Pa

Explanation / Answer

If the flow rate of a liquid is measured at 8.0 ´103 m3/s going through a 2.0 cm radius pipe,which of the following is the average fluid velocity in thepipe? a. 0.64 m/s c. 4.0 ´ 10–2 m/s b. 2.0 m/s d. 6.4 m/s If the flow rate of a liquid is measured at 8.0 ´103 m3/s going through a 2.0 cm radius pipe,which of the following is the average fluid velocity in thepipe? a. 0.64 m/s c. 4.0 ´ 10–2 m/s b. 2.0 m/s d. 6.4 m/s how do you solve that? what equation do you use?
Q = Av , Q being the volumetric flow rate and A being area, and vbeing velocity, so: 8.0x103 = .0012566 x v, so v = 6.366x106m/s Once again, your answer choices are wrong. If you think aboutit, a very fast flow rate through a tiny pipe will have a very fastspeed. Please rate all of my answers! a. 0.64 m/s c. 4.0 ´ 10–2 m/s b. 2.0 m/s d. 6.4 m/s

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