Consider a set of electrons with an initial spin state 
If we send these electrons into an SGx device, what is the probability a given electron will be determined to have its spin anti aligned with the +x direction?
A. 0
B. 1/4
C. 1/2
D. 
E. 1
C. 1/2
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A light ray in air is incident on an air-to-glass boundary at an angle of 30.0° and is refracted in the glass at an angle of 16.7° with the normal. Find the index of refraction of the glass
a. 1.74 c. 1.23 b. 1.40 d. 2.13
Faraday's Law: A round flat conducting loop is placed perpendicular to a uniform 0.50 T magnetic field. If the area of the loop increases at a rate of 3.0 × 10-3 m2/s, what is the induced emf in the loop?
A. 4.3 mV B. 0 mV C. 1.5 mV D. 1.7 mV E. 5.5 mV
Air at an average temperature of 150°C flows through a short square duct 10 × 10 × 2.25 cm at a rate of 15 kg/h. The duct wall temperature is 430°C. Determine the average heat transfer coefficient, using the duct equation with appropriate L/D correction. Compare your results with flow-over-flat-plate relations.
GIVEN
• Air flowing through a short square duct
• Average air temperature (Ta) = 150°C
• Duct dimensions = 10 × 10 × 2.25 cm = 0.1 × 0.1× 0.0225 m
• Duct wall surface temperature (Ts) = 430°C
• Mass flow rate (m ) = 15 kg/h
FIND
The average heat transfer coefficient ( h c) using (a) The duct equation with appropriate L/D correction (b) The flow-over-flat-plate relation
ASSUMPTIONS
• Constant and uniform duct wall temperature
SKETCH
PROPERTIES AND CONSTANTS
for dry air at the average temperature of 150°C
Thermal conductivity (k) = 0.0339 W/(m K)
Absolute viscosity (?b) = 23.683 × 10–6 (Ns)/m2
Prandtl number (Pr) = 0.71 At the surface temperature of 430°C,
the absolute viscosity (?s) = 33.66 × 10–6
Answer the following statement(s) true (T) or false (F)
1. Equation 
implies that a sinusoidal wave’s phase speed depends on its wavelength