Add 8 feet 10 inches, 7 feet 11 inches, and 6 feet 9 inches and express as feet and inches.
Fill in the blank(s) with the appropriate word(s).
23 feet 6 inches
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How many 1 1/4” long pieces can be cut from 5 pieces of 36’ long angle iron? Allow 1/8” waste for each cut.
What will be an ideal response?
Oxygen at T=400 K and P=2 atm flows into an adiabatic, reversible nozzle operating at steady-state. The stream has a negligible velocity as it enters the nozzle but is ejected at a high velocity. The exiting oxygen is at P=0.5 atm. You may assume that oxygen is an ideal gas with constant Cp*=(7/2)R. On a mass basis, this is equivalent to CP = 0.909 kJ/kg-K.
A) Find the change in entropy of the universe resulting from this process. B) Find the temperature and velocity of the oxygen leaving the nozzle. C) Find ?U for the oxygen in J/mol.
A(n) ____ is a simple variable that holds a number or a string.
A. label B. constant C. scalar D. identifier
In a series circuit, total resistance is determined by:
A) Dividing resistance into amperage. B) Adding the sum of all individual resistances. C) Total resistance cannot be determined in a series circuit. D) Dividing voltage into the current.