The sidereal period is _______________ days long, the time it takes the Moon to circle the sky once and return to the same position relative to the stars
Fill in the blank(s) with correct word
27.3
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Two tiny particles having charges of +7.00 ?C and -9.00 ?C are placed along the y-axis. The +7.00-µC particle is at y = 0.00 cm,
and the other particle is at y = 40.00 cm. Where must a third charged particle be placed along the y-axis so that it does not experience any net electric force due to the other two particles? A) 0.200 m B) 2.99 m C) -0.187 m D) -2.99 m E) 0.187 m
Suppose the room in which you are sitting was magically transported off the Earth, and sent accelerating through the universe at 9.8 m/s2. Assuming your doors and windows are sealed and closed, how could you tell that you'd left the Earth?
A) You couldn't; the equivalence principle tells us that you won't be able to tell the difference. B) You would weigh more than you do on Earth. C) Your time would run slower than it does on Earth. D) You'd hear a loud whooshing sound as you careened through space.
What are the four stages of Terrestrial planet development?
What will be an ideal response?
The length of a certain wire is doubled while the radius is reduced by a factor of 4. What is the change in the resistance of this wire?
A) It stays the same. B) It is quadrupled. C) It is increased by a factor of 32. D) It is increased by a factor of 16. E) It is increased by a factor of 8.