The more its central black hole was fed, the more likely the galaxy was to show up as a quasar
Indicate whether the statement is true or false
TRUE
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The shortest wavelength of visible light is _____
A) 300 nanometers B) 400 nanometers C) 500 nanometers D) 600 nanometers
Three resistors,
are connected in series to a 9.0 V battery. What is the total power dissipated by the circuit?
A. 2.0 W B. 4.0 W C. 5.1 W D. 9.0 W E. 20 W
A compressible fluid is flowing through a pipe with a constriction. The diameter of the narrow section is 1/2 the diameter of the wide section. The density of the fluid in the narrow section is 3/4 the density of the fluid in the wide section. If the velocity of the compressible fluid is 3.600 m/s in the narrow section, then what is the velocity of the fluid in the wide section?
A. 0.675 m/s B. 0.805 m/s C. 0.250 m/s D. 0.333 m/s E. 0.500 m/s
Reconsider the problem described in where water jets from a nozzle that has a diameter of 6 mm and impinges on a disk of 4 cm in diameter that is subjected to a uniform heat flux of 70,000 W/m2. Instead of water, consider using air and ethylene glycol as the cooling fluids with the same flow rate (0.008 kg/s) and temperature (20°C) in each case, and determine the temperature on the surface of the disk at radial distances of 3mm and 12 mm from the axis of the jet. Compare the results with those for water obtained in and comment on them.
GIVEN
FIND
(a) Temperature on the surface of disk at radial distance of 3 mm and 12 mm from axis of jet.
(b) Compare results with those of water obtained
PROPERTIES AND CONSTANTS
