The wavelengths that are most likely for communication with other civilizations are those in the water hole

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Physics & Space Science

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The current in two identical light bulbs connected in series is 0.25 A. The voltage across both bulbs is 110 V. The resistance of a single light bulb is

A) 22 ohms. B) 44 ohms. C) 220 ohms. D) 440 ohms. E) none of the above

Physics & Space Science

Comets are not actually members of the solar system, but have been captured by the Sun

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Physics & Space Science

If you triple the rms voltage in an ac circuit, what happens to the maximum voltage?

A) It increases by a factor of . B) It decreases by a factor of . C) It decreases by a factor of 3. D) It increases by a factor of 3. E) It increases by a factor of 9.

Physics & Space Science

A proton is released such that it has an initial speed of 5.0 × 10^5 m/s from left to right across the page. A magnetic field of 1.2 T is present at an angle of 30° to the horizontal direction (or positive x axis). What is the magnitude of the force experienced by the proton? (qp = 1.6 × 10^-19 C)

a. 3.8 × 10^-14 N c. 4.8 × 10^-14 N b. 7.5 × 10^3 N d. 1.3 × 10^-19 N

Physics & Space Science