Consider a quanton in a box. How does the wavelength ? of an energy eigen function in this case depend on the energy E corresponding to that eigen function?
A. ? ? E
B. ? ?
C. ? is independent of E.
D. ? ? 
E. ? ? 1/E
D. ? ?
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The Kelvin temperature scale is based on the freezing point of water
a. True b. False Indicate whether the statement is true or false
The airspeed of an airplane is 200 km/h. When it is caught in a 200-km/h crosswind, its speed across the ground below is
A) 0 km/h. B) 200 km/h. C) 283 km/h. D) 400 km/h. E) 1600 km/h.
The shield of a nuclear reactor is idealized by a large 25 cm thick flat plate having a thermal conductivity of 3.5 W/(m K). Radiation from the interior of the reactor penetrates the shield and there produces heat generation that decreases exponentially from a value of 187.6 kW/ m3. at the inner surface to a value of 18.76 kW/m3 at a distance of 12.5 cm from the interior surface. If the exterior surface is kept at 38°C by forced convection, determine the temperature at the inner surface of the shield. Hint: First set up the differential equation for a system in which the heat generation rate varies according to (0)e–Cx
IVEN
Large flat plate with non-uniform internal heat generation Thickness (L) = 25 cm=0.25 m Thermal conductivity (k) = 3.5 W/(m K) Exterior surface temperature (To) = 38°C Heat generation is exponential with values of
? 187.6 kW/m3 at the inner surface
? 18.76 kW/m3 at 12.5 cm from the inner surface
FIND
The inner surface temperature (Ti)
ASSUMPTIONS
One dimensional, steady state conduction The thermal conductivity is constant No heat transfer at the inner surface of the shield
SKETCH
The formula for iron(II) sulfate is
a. Fe2SO4. b. Fe2(SO4)2. c. Fe(SO4)2. d. FeSO4.