Given 30. ?H and a 60. ? resistor, what range of capacity allows tuning this series circuit to the FM band (88-108 MHz)?
What will be an ideal response?
0.072. pF to 0.11 pF
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As the wavelength of light increases, its energy ________.
A. decreases B. remains constant C. moves more slowly D. increases E. moves more quickly
Which of the following best describes what we mean by the universe?
A) a vast collection of stars that number as many as the grains of sand on all the beaches on Earth B) the sum total of all matter and energy C) all the galaxies in all the superclusters D) The universe is another name for our Milky Way Galaxy.
On a clear day, the sky appears to be more blue toward the zenith (overhead) than it does toward the horizon. This occurs because
A) the atmosphere is denser higher up than it is at the Earth's surface. B) the temperature of the upper atmosphere is higher than it is at the Earth's surface. C) the sunlight travels over a longer path at the horizon, resulting in more scattering. D) none of the given answers
Two projectiles are launched at 100 m/s, the angle of elevation for the first being 30° and for the second, 60°. Which of the following statements is false?
a. Both projectiles have the same acceleration while in flight. b. The second projectile has the lower speed at maximum altitude. c. Both projectiles have the same range. d. All of the above statements are false.