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Type: Posts; User: CommDweeb

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  1. Question: Pool physics

    by CommDweeb
    Answers
    2
    Views
    2,751

    pool physics

    Whew, so formal. :o

    To start with I think we are talking about something like a Beach Ball in an indoor swimming pool. If this is wrong, please advise. This problem is more of a materials problem...
  2. Question: Paraboloids

    by CommDweeb
    Answers
    1
    Views
    1,777

    Paraboloids

    Parabolas perfectly focus light sources that are infinately far away. The closer the light source, the more the distortion. This is not a problem when you are star gazing. A paraboloid is ideal for...
  3. Answers
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    7,137

    centrifugal force

    I think this is what you were asking for.

    One of the laws of motion says that "For every action there is an equal and opposite reaction." A force is often referred to as an action. A reaction is...
  4. Answers
    4
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    7,661

    Map Ports For WinMx and a Wireless Router

    Not enough info.

    1) Can you look at your D-Link router and at least post a model number?

    2) Did your ISP install the Router?

    3) Can you directly access the Router's configuration (do you...
  5. Answers
    1
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    1,500

    file sharing tools

    If you go by sheer volume and number of files transferred as well as the number of users I would have to say INN. INN has been in use since the early 1990's at least. It has probably delivered more...
  6. Answers
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    11,356

    ice and salt; endothermic reaction

    Well, to start with there really isn't a chemical reaction similar to combustion going.

    The ice is simply melting. This absorbs around 100 BTU's per pound of ice melted. What salt does is lower...
  7. Question: Optics

    by CommDweeb
    Answers
    1
    Views
    1,684

    Optics

    This is a context problem. The meaning of many technical terms are intimately tied to the context they are used in. In this case 35mm refers to the size of the film you can put in a camera, where as...
  8. Question: Golf ball

    by CommDweeb
    Answers
    2
    Views
    4,056

    golf ball

    It is not clear to me that the impact of the golf ball is perpendicular to the surface of the Bowling ball. If the impact is not perpendicular then the answer answer would be 'd', not enough info.
    ...
  9. Answers
    2
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    2,394

    physics/par 56's

    This is a link to a spec sheet on a par 56

    http://www.chauvetlighting.com/pdfs/par56.pdf

    This is either a 300 or 600 watt lamp. If you are running on 120 VAC a 10 amp circuit will run 4 300...
  10. Question: Re:Electronics

    by CommDweeb
    Answers
    3
    Views
    3,029

    Re:Electronics

    Need more info.

    The first is trying to get an understanding of your level of expectation. The eye is lucky to see a fluctuation that lasts under 1/30th of a second. This would imply that you could...
  11. Answers
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    1,703

    Respond ASAP! Motion.

    First determine the rate of deceleration.

    If the speed decreases by 1/2 from 21.3 mertes/second in 3 seconds, the rate of deceleration is 3.55 mertes/second. This can be verified by multiplying...
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