What is a carbon star?
A) a red giant star whose atmosphere becomes carbon-rich through convection from the core
B) a star that fuses carbon in its core
C) another name for a white dwarf, a remnant of a star made mainly of carbon
D) a star that produces carbon by fusion in its atmosphere
E) a star that is made at least 50 percent of carbon
A
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Light of wavelength 500 nm illuminates a round 0.50-mm-diameter hole. A screen is placed 6.0 m past the slit. What is the width of the central bright circle on the screen?
A) 3700 ?m B) 7.3 mm C) 15 mm D) 260 ?m
Regional metamorphism causes a parallel arrangement of mineral grains that results in a pronounced layering of the rock. The layering is known as ______________
Fill in the blank(s) with correct word
Metamorphic definition
What will be an ideal response?
At equilibrium on a bathroom weighting scale, the downward pull of gravity on you is balanced by
A) your weight. B) an upward support force. C) your mass.