The black hole in the core of a Seyfert galaxy consumes the equivalent of hundreds of solar masses a day

Indicate whether the statement is true or false


FALSE

Physics & Space Science

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Explain why, even though there are sound waves in space, it is still true that "no one can hear you scream" (assuming that the sound of your scream travels only through space, not through radio communication).

What will be an ideal response?

Physics & Space Science

How does a lenticular galaxy differ from a spiral galaxy?

A) It has no bulge. B) It has an elongated bulge resembling a bar more than a sphere. C) It is flatter in shape. D) It has no gas or dust. E) It has no spiral arms.

Physics & Space Science

On average, how often do impacts large enough to produce mass extinction on the Earth occur?

A) once every century B) once every million years C) once in Earth's history D) once every thousand years E) once every hundred million years

Physics & Space Science

A 5.0-kg object is pulled along a horizontal surface at a constant speed by a 15-N force acting 20° above the horizontal. How much work is done by this force as the object moves 6.0 m?

a. 78 J b. 82 J c. 85 J d. 74 J e. 43 J

Physics & Space Science