A smooth distribution of radiation across a broad range of wavelengths is referred to as
A) an emission line spectrum
B) an absorption line spectrum
C) a continuous spectrum
D) a broad spectrum
C
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Long 20 cm by 20 cm square steel stock having a thermal conductivity of 50 W/mK and thermal diffusivity of 1 x 10^-5m^2/s is put in oil at 100ºC when the steel stock is at 300ºC. With a convective heat transfer coefficient of 150 W/m^2K, determine the temperature of the center and the edge of the stock after being heated for 2 minutes in the oil.
What will be an ideal response?
The__________estimates the total number of communicative civilizations in our galaxy
A) Copernicus scale B) Drake equation C) Kardashev scale D) Kepler equation
The number of protons in the nucleus of an atom determines
A. the half-life of the nucleus. B. the atomic mass. C. the density of the nucleus. D. the number of neutrons in the nucleus.
The mat of a trampoline is held by 32 springs, each having a spring constant of 5 000 N/m. A person with a mass of 40.0 kg jumps from a platform 1.93 m high onto the trampoline. Determine the stretch of each of the springs