QUIZ IV-0203 November 2009Easy Question (100 points)How many US presidents were named JAMES? Answer Format: word
Answer: six Winner: great2find
No. of members who answered correctly: 10 out of 14
Difficult Question (300 points)Assume that you can walk towards the moon through a straight path in space. As you move farther and farther away from the earth, the gravitational force exerted by the earth on you becomes lesser and lesser, while the gravitational force exerted by the moon on you becomes greater and greater; until you reach a certain point where both of these gravitational forces become equal in magnitude. At this so-called "point of no return", you remain stationary in space (although you can move any part of your body) because you are being pulled by two equal but opposite forces. Suggest a way on how you can proceed to the moon or how you can get back to earth, whatever way you want.
[Make your discussion as concise as possible, but to the point, AND FROM PHYSICS STANDPOINT. Scores may vary from 0 to 100 to 200 to 300 points]
The underlying principle behind this hypothetical situation is Newton’s Third Law of Motion, which states that “for every action, there is an equal and opposite reaction”.
If you want to proceed to the moon while at the “point of no return”, you can fart. The fart (action) moves towards the earth which will act as the propelling thrust for you to move towards the moon (reaction).
However, if you find it difficult to fart, then you can turn around facing the earth and you can do any of the following:
- Sneeze. The sneeze (action) moves towards the earth and the reaction is your body moves towards the moon.
- You can take off your clothes and roll them into a ball. Throw it towards the earth (action), and the reaction is your body moves towards the moon.
- If you brought a gun, fire it towards the earth. The bullet moving towards the earth supplies the action force, and the gun recoils (reaction) causing your body to move towards the moon.
Should you decide to go back to earth, do these things in opposite direction.
Quiz IV-02 SCORERS
danielperez501 300 points
great2find 300 points
tinasfrieditik 300 points
frozone88 200 points
jigman 200 points
limgeri 200 points
reign127 200 points
bluearcher68 100 points
mapusok 100 points
pinoycreditguide 100 points
CURRENT STANDING
danielperez501 600 points
great2find 600 points
tinasfrieditik 600 points
frozone88 500 points
jigman 500 points
limgeri 500 points
reign127 500 points
bluearcher68 400 points
mapusok 400 points
pinoycreditguide 200 points
chinatrustloans 100 points
loadbusiness 100 points
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