What is the unit of coefficient of viscosity? a) Ns/m2 b) Nm/s c) Ns/m d) Nm/s2
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What is the unit of coefficient of viscosity?
a) Ns/m2
b) Nm/s
c) Ns/m
d) Nm/s2
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- The pressure exerted by a phonograph needle on a record is surprisingly large. If the equivalent of 1.10 g is supported by a needle, the tip of which is a circle 0.220 mm in radius, what pressure is exerted on the record in N/m2? N/m2Water can form large dewdrops in nature. How droplets made of vegetable oil instead of water be different? A. Oil can form the same large droplets as water because it has strong intermolecular forces. B. Oil would form droplets, but only very tiny ones because its surface tension is lower than that of water. C. Oil forms slicks, not droplets, because of its molecular structure. D. All liquids will form the same large droplets that water does.Which best explains why the meniscus of mercury in a glass tube is convex? A) The great attraction of mercury to the glass than itself. B) The lower attraction of mercury to the glass than to itself C) The low surface tension of mercury D) The high density of Mercury compared to water. E.) The repulsion between mercury and the glass.
- P-3 Please I need help with this question needed very clearly and step-by-step explanation and NEEDED ONLY HANDWRITTEN PLEASE, will be really appreciated for your help. NEEDED ONLY HANDWRITTEN SOLUTIONSA box is lowered using a rope. If the acceleration of the box, is 5.7 m/s2 (downward) and its mass is 23.1 kg, what is the magnitude of the tension in the rope? (in N) OA: 60.8 OB: 76.0 OC: 94.9 OD: 118.7 OE: 148.3 OF: 185.4 OG: 231.8 OH: 289.7Angioplasty is a technique in which arteries partially blocked with plaque are dilated to increase blood flow. By what factor must the radius of an artery be increased in order to increase blood flow by a factor of 3, assuming no change in pressure difference? rf ri Additional Materials
- E15. Water emerges from a faucet at a speed of 1.5 m/s. After falling a short distance, its speed increases to 3 m/s as a result of the gravitational acceleration. By what number now would you multiply the original cross-sectional area of the stream to find the area at the lower position?hotoQ13/The heart rate of a person is 120 pulse/min, the action time of heart muscle is * 0.33 sec. 0.5 sec. O 0.17 sec.You can chew through very tough objects with your incisors because they exert a large force on the small area of a pointed tooth. What pressure in Pa can you create by exerting a force of 460 N with your tooth on an area of 1.00 mm2? in Pa