An iceberg weighing 1,000 tons is floating in the North Atlantic. Consider the gravitational forces on the iceberg due to the Earth, the Moon, and the Sun. Put these gravitational forces in order of increasing magnitude
You do not need to do any calculations. Use reasoning, or simply guess.
1.Earth < Moon < Sun
2.Earth < Sun < Moon
3.Moon < Sun < Earth
4.Moon < Earth < Sun
5.Sun < Moon < Earth
6.Sun < Earth < Moon
3
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Projectile Motion: For general projectile motion with no air resistance, the horizontal component of a projectile's velocity
A. remains zero. B. remains a non-zero constant. C. continuously increases. D. continuously decreases. E. first decreases and then increases.
The set of particles shown below all have the same mass and speed. Which has the largest magnitude of angular momentum around the point O? 
A. A B. B C. C D. D E. E
What is the maximum angular magnification of a magnifying glass of focal length 10 cm? (Assume the near point is at 25 cm.)
What will be an ideal response?
If the voltage gain for a transistor amplifier is 60 in a circuit with an output resistance of 10,000 ohms, what is the peak output current if the peak input voltage is 0.05 V?
A) 3 x 10-4 A B) 4 x 10-4 A C) 5 x 10-4 A D) 6 x 10-4 A E) 60 ?A