The water hole is important to SETI because it is a(n) ________ part of the radio spectrum

Fill in the blank(s) with correct word


quiet

Physics & Space Science

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Fundamental Forces: Which of the following statements is not true of the strong nuclear force?

A. The nuclear force has a short range, of the order of nuclear dimensions. B. For two protons that are very close together, the nuclear force and the electric force have about the same magnitudes. C. The nuclear force does not depend on charge. D. A nucleon in a large nucleus interacts via the nuclear force only with nearby nucleons, not with ones far away in the nucleus. E. The nuclear force affects both neutrons and protons.

Physics & Space Science

In nuclear fusion, energy is produced because:

a) Hydrogen is not stable. b) the mass of the reacting chemicals is larger than that of the products. c) of the energetic impact of collisions. d) gravity leads to collapse. e) positrons are produced.

Physics & Space Science

If the frequency of blinks for a light source appears to double as the light source approaches you, the frequency of blinks as it moves away from you at the same speed

A) is halved. B) is doubled. C) stays the same.

Physics & Space Science

A battery operating a large flashlight produces a current of 2 amperes in a light bulb that has a resistance of 4 ohms. The voltage of the battery is 2 volts

a. True b. False Indicate whether the statement is true or false

Physics & Space Science