According to the nebular theory, where should jovian planets form?
A) in the cold outer regions of the disk, where rocks, metals, and ices can condense
B) within the inner few AU of the disk, where only rocks and metals can condense
C) at the inner edge of the planet forming disk, where even metal and rock evaporate
A
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Modern electroplaters can cover a surface area of 75.0 m2 with one troy ounce of gold (volume = 1.611 cm3). What is the thickness of the electroplated gold?
a. 2.15E–8 m b. 1.07E–8 m c. 1.43E–8 m d. 4.30E–8 m e. None of the above
A 6.00-kg block is in contact with a 4.00-kg block on a horizontal frictionless surface as shown in the figure. The 6.00-kg block is being pushed by a horizontal 20.0-N force as shown
What is the magnitude of the force that the 6.00-kg block exerts on the 4.00-kg block? A) 6.00 N B) 20.0 N C) 8.00 N D) 4.00 N E) 10.0 N
A watermelon is a good example of
a. a compound. b. an element. c. a homogeneous mixture. d. a heterogeneous mixture.
Which of the following is a vector quantity?
A. volume B. force C. speed D. time E. length