Which of the following stellar properties has the greatest range in values?
A) mass
B) radius
C) core temperature
D) surface temperature
E) luminosity
E) luminosity
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In the Doppler effect it is important to distinguish between
A) frequency and speed. B) speed and velocity. C) speed and acceleration. D) distance and displacement.
Single-Slit Diffraction: A beam of light of wavelength 600 nm passes through a slit that is 3.1 × 10-5 m wide, and then goes on to a screen that is 2.2 m from the slit. On the screen, how far is the second dark fringe from the center of the diffraction pattern?
A. 3.9 cm B. 4.2 cm C. 6.3 cm D. 2.1 cm E. 8.5 cm
A 2.0-kg block slides on a rough horizontal surface. A force (magnitude P = 4.0 N) acting parallel to the surface is applied to the block. The magnitude of the block's acceleration is 1.2 m/s2. If P is increased to 5.0 N, determine the magnitude of the block's acceleration.
A. 2.1 m/s2 B. 2.3 m/s2 C. 1.9 m/s2 D. 1.7 m/s2 E. 3.2 m/s2
What makes up the bulk of the atmosphere of Venus?
a. hydrogen b. carbon dioxide c. argon d. water vapor e. sulfuric acid