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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)
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Erik's puzzle. In a stripped-down version of Conway's game of life, cells are arranged on a square grid. Each cell is either alive or dead. Live cells do not die. Dead cells become alive if two or more of their immediate ...
A race car completes a lap on a 1600 m long track with an average speed of 250 km/h. If the car's average speed on the first half of the track was 205 km/h, what was its average speed on the second half?
Each of the bodies shown is homogeneous and has a mass of 30 kg. Assume friction at all contact surfaces. Draw the fully dimensioned FBD for each body and determine the number of unknowns.
Below is the calculator result for the operation indicated. Enter the answer to the correct number of significant figures for this calculation, using the rules for significant figures. 3.82193 + 10.5861 = 14.40803
1. What is the valence bond model? What is the energy band model? 2. If all the valence electrons in silicon are in the valence band, what is the minimum photon energy that is just enough to release an electron from sili ...
Many texts draw figure 8.1 in the form of a Venn diagram (figure 8.2). Discuss why this diagram is a misleading representation of entropies. Hint: consider the three-variable ensemble XY Z in which x ∈ {0, 1} and y ∈ {0, ...
When displaced from equilibrium by a small amount, the two hydrogen atoms in an H2 molecule are acted on by a restoring force Fx = k1x with k1 = 530 N/m. Calculate the oscillation frequency f of the H2 molecule. Use meff ...
1 .A compact disc spins at a rate of 200 to 500 revolutions per minute. What are the equivalent rates measured in radians per second? 2. What is the approximate period of the moon's revolution around the earth?
The binding energy of an electron trapped to a sulfur double donor S +6 in Si was measured by Prof. Sah and his graduate students at Illinois in 1971 using the photo capacitance transient method they invented and found ...
Determine the length of runway that would enable a 200-tonne airliner to reach its take off speed (75 m s-1), starting from rest, when the engines generate a total thrust of 300 kN. Explain in a few words how the actual ...
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Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group
SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless
Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl
DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac
Create a provider database and related reports and queries to capture contact information for potential PC component pro