Determine a relationship for the volume element in spherical coordinates.
What will be an ideal response?
Referring to the sketch for an element in spherical coordinates, and guided by the
concept of a volume element gives,
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Proxima Centauri has an absolute visual magnitude of 15.5 and an apparent visual magnitude of 11.0 . What is the distance to Proxima Centauri in units of pc?
a. 0.1 b. 10^0.1 c. 10^–0.1 d. None of the other choices are correct.
A rock found on Earth that crashed down from space is called
A) a meteor. B) an asteroid. C) a meteorite. D) an impact.
Saturn's icy moon Enceladus
A) has an ancient, heavily cratered surface reminiscent of the Moon B) is small and irregular in shape like an asteroid C) has a smooth, icy surface criss-crossed with dark cracks D) has fountains of ice particles and water vapor spraying out from its surface
Each pattern shown below would appear on a screen when monochromatic light of wavelength ? first passes through a narrow slit of width a and then strikes a screen. The darkest areas on the page represent the brightest areas on the screen. In which case does the slit have the narrowest width?
a.
b.
c.
