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Calculating the Reynolds number.
find out Reynolds number if water at 15°C is flowing through a 3cm diameter pipe with a velocity of 50 cm-1. Is flow turbulent or laminar?
(At 15°C water has density of 999.1 kgm-3, and viscosity 1.14 x 10-3 Nsm-2)
Two identical gas cylinders. One contains the diatomic gas nitrogen (N 2 ), and the other contains an equal mass of the diatomic gas oxygen (O 2 ). The pressures in the cylinders are the same, but the temperatures are di ...
(a) If x 3 + y 3 - xy 2 = 5, find dy/dx. (b) Using your answer to part (a), make a table of approximate y-values of points on the curve near x = 1, y = 2. Include x = 0.96, 0.98, 1, 1.02, 1.04. (c) Find the y-value for x ...
(a) If you jump out of an airplane without a parachute, you fall faster and faster until air resistance causes you to approach a steady velocity, called the terminal velocity. Sketch a graph of your velocity against time ...
What are quantum paths, and the path integral formulation of quantum mechanics?
Question: Ultrasound can be used to deliver energy to tissues for therapy. It can penetrate tissue to a depth approximately 200 times its wavelength. What is the approximate depth of penetration of ultrasound at a freque ...
The input to a channel Q is a word of 8 bits. The output is also a word of 8 bits. Each time it is used, the channel flips exactly one of the transmitted bits, but the receiver does not know which one. The other seven bi ...
How does period depend on amplitude of the oscillation? Specifically, do you think bigger-amplitude motion takes more time, less time, or the same amount of time as smaller-amplitude motion?
1. The two lowest-energy wave functions of the electron bund to the two protons are symmetric and antisymmetric. Sketch and explain why one has a lower energy while the other has a higher energy. 2. An electron is inject ...
Describe the asymptotic properties of the probabilities depicted in figure 16.11a, for a grid in a triangle of width and height N. Figure 16.11
The three cards (a) One card is white on both faces; one is black on both faces; and one is white on one side and black on the other. The three cards are shuffled and their orientations randomized. One card is drawn and ...
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