Hydrogen atoms in palladium form a(n) _____________solid solution.
Fill in the blank(s) with the appropriate word(s).
interstitial
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Velocity Addition: A rocket is traveling away from Earth at 90% the speed of light. The captain turns on a laser light. What is the speed of the light as measured by an Earth-based astronomer if the captain aims the laser (a) directly forward or (b) directly backward?
What will be an ideal response?
The pressure drop in 10 m of a turbulent flow in a pipe is 200 Pa. The time-average velocity in the pipe at three radial locations is measured to be:
The eddy viscosity at r = 25 mm is nearest (neglect the kinematic viscosity):
Determine the outlet temperature of oil for the same initial temperatures of the fluids if the flow arrangement is one shell pass and two tube passes, but with the same total area and average overall heat transfer coefficient as the unit in
• Water cooling oil in a tube and shell heat exchanger
• Water flow rate ( m
w)= 1.25 kg/s
• Oil flow rate ( m
o)= 2.5 kg/s
• Oil specific heat (cpo) = 2093 J/(kg K)
• Water inlet temperature: (Tw,in) = 15°C
• Oil inlet temperature: To,in = 95°C
• Overall heat transfer coefficient (U) = 280 W/(m2 K)
• One shell and two tube passes
• Same surface area as Problem 10.23: A = 11.2 m2
FIND
• The oil outlet temperature (To,out)
SKETCH
PROPERTIES AND CONSTANTS
the specific heat of water (cpw) = 4187 W/(kg K)
Into how many constellations is the celestial sphere divided?
A) 12 B) 44 C) 57 D) 88 E) 110