A star less luminous than our Sun will have a habitable zone that is
A) narrower and closer to the star than the habitable zone of the Sun
B) wider and closer to the star than the habitable zone of the Sun
C) narrower and farther from the star than the habitable zone of the Sun
D) wider and farther from the star than the habitable zone of the Sun
A
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If you are ever fortunate enough to experience a total eclipse of the Sun, you can be sure that it will happen when the Moon is
A. in the "new Moon" phase. B. full. C. in its "first quarter" phase. D. in its "last quarter" phase. E. No way to tell; it's a matter of chance
A spaceship is traveling to the Moon. At what point is there no more gravitational force exerted on it by Earth?
A) when it gets above the atmosphere B) when it is half-way there C) when it is closer to the Moon than it is to Earth D) There is no point where there is no more gravitational force exerted on the spaceship by Earth
Energy in the Electric Field: A 25.0-V potential source (a battery) is connected across the plates of a 6.66-µF air-filled parallel-plate capacitor having plates that are 1.22 mm apart. What energy density does it produce between the plates? (?0 = 8.85 × 10-12 C2/N ? m2)
Fill in the blank(s) with the appropriate word(s).
Which of the following is the file extension for Google's bitmap image format?
A. .psd B. .bmp C. .jpg D. .webp