A supernova is almost always associated with
a. a very massive star.
b. a very young star.
c. a star undergoing helium flash.
d. a white dwarf in a close binary system.
e. a solar-like star that has exhausted its hydrogen and helium.
d
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Blackbody radiation is emitted from a small hole in a furnace
Indicate whether the statement is true or false
Fossils are found in
A) sedimentary rocks. B) metamorphic rock. C) igneous rocks. D) sedimentary and some metamorphic rocks.
Newton's Second Law in 1 Dimension: A certain aircraft has a mass of 300,000 kg. At a certain instant during its landing, its speed is 27.0 m/s. If the braking force is a constant 445,000 N, what is the speed of the airplane 10.0 s later?
A. 10.0 m/s B. 12.2 m/s C. 14.0 m/s D. 18.0 m/s E. 20.0 m/s
The molecular weight of carbon dioxide is 44.0 g/mol. What is the internal energy in 3.00 kg of carbon dioxide at 300 K? As an approximation, treat the carbon dioxide gas as if it was monatomic
A) 2.55 × 105 J B) 1.70 × 105 J C) 2.55 × 104 J D) 1.70 × 104 J E) 1.70 × 106 J