A gold-nickel alloy
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Which of the following is required for helium fusion as compared to hydrogen fusion?
A) much higher temperature B) much higher density C) a star of much greater mass D) a star that is much older in age
What letters are commonly used to designate the subshells L = 0, 1, 2, 3, and 4?
What will be an ideal response?
A particle with charge -40.0 nC is on the x axis at the point with coordinate x = 0. A second particle, with charge -20.0 nC, is on the x axis at x = 0.500 m. Is there a point at a finite distance where the electric field is zero?
1.Yes; it is to the left of x = 0. 2.Yes; it is between x = 0 and x = 0.500 m. 3.Yes; it is to the right of x = 0.500 m. 4.No.
When an image is inverted compared to the object, it is also:
a. enlarged. c. diminished. b. virtual. d. reversed left to right.