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Assume that experimental studies of turbulent-jet methane-air diffusion flames have been performed under the following sets of conditions of jet exit diameter D and average jet exit velocity U:
For each experiment, estimate at the duct exit and at the position of the maximum average rate of heat release:
(a) the turbulence Reynolds number based on the integral scale,
(b) the average rate of dissipation of turbulent kinetic energy,
(c) the Kolmogorov microscale,
(d) the Taylor microscale,
(e) the Kolmogorov time, and
(f) the time for convection of a fluid element over a Kolmogorov scale in the laboratory frame.
You need to use a 21-cm-focal-length lens to produce an inverted image one third the height of an object. At what distance from the object should the lens be placed? Express your answer to two significant figures and include the appropriate units.
You are given a straight piece of conductor that is 4.6 cm long, find the magnitude of induced voltage that will be produced between the ends of this moving conductor
Two narrow slits are illuminated by a laser with a wavelength of 537 nm. The interference pattern on a screen located x = 5.50 m away shows that the second-order bright fringe is located y = 6.00 cm away from the central bright fringe. Calculate the ..
If the mass of the electron is 9.109 × 10–31 kg, illustrate what is the magnitude of its relativistic momentum?
Chinook salmon are able to move through water especially fast by jumping out of the water periodically. This behavior is called porpoising. Suppose a salmon swimming in still water jumps out of the water with velocity 6.59 m/s at 41.7° above the h..
The first three harmonics in an organ pipe are 126 Hz, 378 Hz and 630 Hz. (a) Is the pipe open-open or open-closed? (b) Taking the speed of sound in air to be 340m/s, and the length of the pipe.
A golf ball is dropped from rest from a height of 8.30 m. It hits the pavement, then bounces back up, rising just 5.90 m before falling back down again, calculate the total amount of time that the ball is in the air
If the wavelength of the radio broadcast by the radio station is 400 m and there is a phase change upon reflection from the cloud, find the minimum height of the storm cloud that will produce destructive interference between the direct and reflect..
A large pot is placed on a stove and 1.2 kg of water at 14°C is added to the pot. The temperature of the water is raised evenly to 100°C just before it starts to boil. What amount of heat is absorbed by the water in reaching 100°C
Calculate the force a piano tuner applies to stretch a steel piano wire 7.70 mm, if the wire is originally 0.850 mm in diameter and 1.30 m long
A certain car is capable of accelerating at a rate of 0.53 m/s2. How long does it take for this car to go from a speed of 50 mi/h to a speed of 61 mi/h
In a marathon race Chad is out in front, running due north at a speed of 3.88 m/s. John is 97 m behind him, How long does it take for John to pass Chad
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