Which of the following statements is true of the chromosphere?
A) It lies below the photosphere.
B) It has a depth greater than Earth's diameter.
C) It consists of nonionized atoms.
D) It can be seen during a total solar eclipse.
D
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The figure below shows a single lens with two rays of white light incident on it from the left. Sketch the paths of the blue, yellow, and red components of each of these rays to the point where the light from the upper and lower rays would meet
What will be an ideal response?
The spectral lines of a star will appear ________ if the star is moving away from the Earth.
A. blue shifted (i.e., shifted toward the shorter wavelengths) B. the same (no shift) C. red shifted (i.e., shifted toward the longer wavelengths)
An automobile accelerates from zero to 36.72 m/s in 6.80 s. The wheels have a diameter of 0.450 m. What is the average angular acceleration of each wheel?
a. 12.0 rad/s2 b. 24.0 rad/s2 c. 33.6 rad/s2 d. 21.9 rad/s2 e. 18.0 rad/s2
What is the molarity of a solution that contains 2 mol of solute in 4 L of solution?