Protostars have not been observed, but are consistent with observations of young main sequence stars
Indicate whether the statement is true or false
FALSE
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The Burger’s vector in ionic materials is larger than in elemental metals, because the Burger’s vector must connect two _____________points.
Fill in the blank(s) with the appropriate word(s).
Satellite Motion: A large telescope of mass 8410 kg is in a circular orbit around the earth, making one revolution every 927 minutes. What is the magnitude of the gravitational force exerted on the satellite by the earth? (G = 6.67 × 10-11 N ? m2/kg2, Mearth = 6.0 × 1024 kg)
Fill in the blank(s) with the appropriate word(s).
How would most planetary scientists classify Pluto? Why was this not done when it was found in 1930, misleading generations of elementary school children?
What will be an ideal response?
Which of these colors of light has photons of lowest energy?
a. Yellow b. Green c. Blue d. Violet