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Thread: Test your knowledge

  1. #1
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    Test your knowledge

    The game is someone says a question of anything and the person who answers it makes a new question about anything. This is kind of like the thread I posted called are you smart enough except this isn't limited to just math. ok I'm first When they measure a TV how do they measure it diagnol horizontal etc...

  2. #2
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    Diagonal of screen.

    (Do I wait for you to OK/negate this or do I just ask: How many covered bridges are there in Maine?

  3. #3
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    don't wait for anyone to say ik just ask the question telling you this for future reference.

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    Their used to be 120 covered bridges but today only 9 or 8 stand. I hope I was right and now I will proceed to give the next question. The movie Superbad what was it rated.
    Last edited by 3dknight; 2007-Sep-19 at 05:44 AM.

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    9 is correct

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    The movie was rated R. Anyone else wanna post a question please.

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    This thread has come into disuse, but I will try to resuscitate it.

    Which country has a capital city which is more northerly, Iran or Afghanistan?

  8. #8
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    Iran

    What lake is the town of Tompa on?

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    Do you mean Tampa?

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    Quote Originally Posted by 3dknight View Post
    Do you mean Tampa?
    T-O-M-P-A
    itsy-bitsy little place between Atlantic in WEST & Pacific in EAST. (sic!!)

  11. #11
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    Lake Tanganyika I will assme I'm correct and give the next question. I may be wrong there are more than one places called Tompa.

    My questions are easy what is a solar mass?

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    The mass of sol.

    Why is the sky blue?

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    Diffuse sky scattering.

    If you know the exact momentum of an electron, where is it?

  14. #14
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    Ultraviolet rays I think.

    How fast do electron orbit protons?

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    We asked almost the same question.
    lol

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    Quote Originally Posted by korjik View Post
    If you know the exact momentum of an electron, where is it?
    You cannot be sure.
    Trigger warning - this post may contain information that some members disagree with, and is not suitable for a safe space like CQ.

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    Your turn for the question homo bibiens.

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    Suppose a planet is a perfect hollow sphere made from a uniform material. Also suppose all other planets are sufficiently far that they can be ignored. Suppose an astronaut is exactly at the center of the planet, but moving at some speed towards a point on the sphere. What is the minimum speed he must move at to escape the gravitation of the sphere, and reach the surface of the planet (that is, the inside of the sphere)? Express answer in terms of radius of the planet, thickness of its crust, and density of the material.
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  19. #19
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    Quote Originally Posted by 3dknight View Post
    Lake Tanganyika I will assme I'm correct and give the next question. I may be wrong there are more than one places called Tompa.

    My questions are easy what is a solar mass?
    I'll take your word for it, even though that's more like Atlantic in E & Indian Ocean in W.

    My Tompa is at N end of Lake Baikal in Siberia.

  20. #20
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    You weren't specific on which Tompa so I looked it up on google earth and picked one. o well

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    So is my question still the active one, or should it be someone else's turn?
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    Yours is HB

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    Express answer in terms of radius of the planet, thickness of its crust, and density of the material.
    You didn't tell us any of this. Do we make it up?

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    Quote Originally Posted by 3dknight View Post
    You didn't tell us any of this. Do we make it up?
    You can make up some example numbers, or give a general answer as a function of these things. But maybe it will be helpful to spend some thinking how the answer depends on these things
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  25. #25
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    Quote Originally Posted by 3dknight View Post
    Their used to be 120 covered bridges but today only 9 or 8 stand. I hope I was right and now I will proceed to give the next question. The movie Superbad what was it rated.
    and one is in new brunswick :P

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    I thought my question would not be difficult, but nobody has answered. So I will answer.

    A uniform hollow sphere places no gravitational attraction on any point inside the sphere. So if the astronaut is moving at all (so his speed is not zero), then he will eventually reach the inside surface of the hollow planet. So the answer is, if his speed is greater than zero.
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