The star Aldebaran is cooler and much more luminous than the Sun. Where do you expect to find Aldebaran in the H-R diagram?
A. bottom left
B. top left
C. bottom right
D. center
E. top right
Answer: E
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The ____ of an object can be measured in degrees
a. apparent brightness b. apparent magnitude c. zenith d. angular diameter e. color
In a single slit diffraction experiment, the width of the slit is 3.1 × 10-5 m and the distance from the slit to the screen is 2.2 m
If the beam of light of wavelength 600 nm passes through the slit and forms a diffraction pattern on the screen, what is the linear distance on the screen from the center of the diffraction pattern to the first dark fringe? A) 2.1 cm B) 4.3 cm C) 6.3 cm D) 7.4 cm E) 8.5 cm
A 0.10-kg ball, traveling horizontally at 25 m/s, strikes a wall and rebounds at 19 m/s. What is the magnitude of the change in the momentum of the ball during the rebound?
A) 72 kg ? m/s B) 4.4 kg ? m/s C) 1.8 kg ? m/s D) 5.4 kg ? m/s E) 1.2 kg ? m/s
Describe the plate tectonic theory
What will be an ideal response?