Why does the Moon glow coppery red during a total lunar eclipse?
What will be an ideal response?
The sunlight refracted through Earth's atmosphere causes the Moon to look red.
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Circular Motion of Charges: A proton is accelerated from rest through 0.50 kV. It then enters a uniform magnetic field of 0.30 T that is oriented perpendicular to its direction of motion.(a) What is the radius of the path the proton follows in the magnetic field?(b) How long does it take the proton to make one complete circle in the magnetic field?.
What will be an ideal response?
If an interstellar gas cloud shrinks in size, what does the law of conservation of energy predict it will do?
A) heat up B) spin slower C) cool off D) continue shrinking E) spin faster
In Heisenberg's formula, ?p ?x? h, the h symbolizes
A) Planck's constant. B) an average value of Planck's constant. C) the peak value of Planck's constant. D) Planck's constant divided by 2?. E) none of the above
What is true of Titan's atmosphere?
A) It was discovered by the Voyager 1 spacecraft. B) It is roughly similar to Earth's in composition and density. C) It has produced a runaway greenhouse effect. D) It is oxygen rich. E) It is primarily hydrogen.