The name of the average distance from Earth to the sun is one ____________________
Fill in the blank(s) with correct word
astronomical unit
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Which of the following is true of a light-year(ly)?
A) It is a unit of time. B) It is a unit of mass. C) It is a smaller unit of distance than kilometers. D) It is a larger unit of distance than the astronomical unit.
If the wavelength of a monochromatic source is 316 nm in vacuum, what is the wavelength from the same source when it passes through a liquid where the speed of light is 1.86 × 10^8 m/s? (c = 3.00 × 10^8 m/s)
a. 590 nm b. 510 nm c. 566 nm d. 196 nm e. 121 nm
Plane A is flying at 440 mph in the northeast direction relative to the Earth. Plane B is flying at 550 mph in the north direction relative to the Earth. What is the speed of Plane B as observed from Plane A?
a. 570 mph b. 916 mph c. 392 mph d. 704 mph e. 714 mph
Inserting a dielectric material between two charged parallel conducting plates, originally separated by air and disconnected from a battery, will produce what effect on the capacitor?
a. increase voltage c. increase capacitance b. increase charge d. decrease capacitance