The term age of ancient life is sometimes used to refer to the ______________ era
Fill in the blank(s) with correct word
Paleozoic
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How should the control volume method be implemented at an interface between two materials with different thermal conductivities? Illustrate with a steady, one-dimensional example. Neglect contact resistance.
GIVEN
Interface between two different materials with different thermal conductivities
FIND
(a) Difference equation at the interface
ASSUMPTIONS
No heat generation
SKETCH
____ is the thermonuclear fusion of hydrogen to form helium operating in the cores of massive stars on the main sequence
a. The CNO cycle b. The proton-proton chain c. Hydrostatic equilibrium d. The neutrino process e. none of the above
The angular resolution of a telescope is never less than its diffraction limit
Indicate whether the statement is true or false
A square plate has an area of 29.00 cm2 at 20.0°C. It will be used in a low temperature experiment at T = 10.0K where it must have an area of 28.00 cm2 . What area must be removed form the plate at 20.0°C for it to have the correct area at 10.0 K? (The coefficient of linear expansion is 10 × 10^-6 (°C)-1.)
a. 0.079 3 cm2 b. 0.159 cm2 c. 0.238 cm2 d. 0.841 cm2 e. 0.921 cm2