No one can hear you scream (or fire a weapon) in space, regardless of the Hollywood special effects. Explain why
What will be an ideal response?
Sound waves must travel though a material medium, and cannot pass through a vacuum. The blast might be seen, but the boom will not be heard.
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the space time interval between the events?
A. Jennifer B. Rob C. The train passengers
The number of significant figures a common ruler can measure is
A) zero. B) one. C) three. D) five. E) seven.
Radio dishes are large in order to
A) attract funding from NASA and the NSF. B) give greater magnification. C) increase their angular resolution and collect the very weak radio photons. D) increase the range of waves they can collect. E) detect shorter waves than optical telescopes for superior resolution.
Due to the incredible size of the universe, our search for extraterrestrial life will probably be limited to within our
A) Local Group of galaxies B) Local Supercluster of galaxies C) Milky Way galaxy D) solar system