Recent content by 5P@N

  1. 5P@N

    How much force and energy for moving a frictionless object

    What do you all mean when you say: "constant force"? What would this constant force do? What are its attributes? .5^2 = .25 .25 *8 = 2 since the object moved 2 meters, this appears correct. Or what am I missing?
  2. 5P@N

    How much force and energy for moving a frictionless object

    Homework Statement I have an object of 10 kg It is to be displaced 2 meters Assume a frictionless surface, and no wind resistance The object begins as stationary, then is moved that distance in the span of .5 seconds. Homework Equations Force = mass* acceleration acceleration = (delta...
  3. 5P@N

    Need help understanding a lift coefficient formula

    is a lift coefficient in units of meters/second^2? Anyone? I had performed a calculation of lifting force, and in order to be in Newtons, the lift coefficient would need to have these units...
  4. 5P@N

    Need help understanding a lift coefficient formula

    is anyone else having trouble with Latex? For some reason I don't have it anymore.
  5. 5P@N

    Need help understanding a lift coefficient formula

    It does. Thanks spamanon.
  6. 5P@N

    Need help understanding a lift coefficient formula

    Please go to this Wikipedia article on Lift Coefficients, and behold the first formula. The last part of the equation has a "S" which is supposed to stand for "relevant plan area". Now, there was no explanation of what this "relevant plan area" is or means. I was guessing that it means the...
  7. 5P@N

    How much does the wing of an eagle weigh?

    BAM! Found it! http://my.kwic.com/~pagodavista/schoolhouse/species/birds/body.htm And I quote: "A female Bald eagle can have wings that are almost 8 feet long (243 centimeters) - and yet, the wings weigh less than 2 pounds (900 grams)." Thank you berkeman. The solution was merely to more...
  8. 5P@N

    How much does the wing of an eagle weigh?

    adult please. I don't like to just guess. Or perhaps you could suggest to me where or how to search out this information? I've been googling ad nauseum, and still have nothing.
  9. 5P@N

    How much does the wing of an eagle weigh?

    ratio of wing to animal will do.
  10. 5P@N

    How much does the wing of an eagle weigh?

    I have scoured the internet, and thus far have been unable to find this data. I want to know how much an eagle wing weighs. I realize there are different species, but all I am concerned about is the weight of the wing of any eagle species. It's easy enough to find the total weight of the whole...
  11. 5P@N

    Why a man on the Moon can jump 21 times higher than on the Earth

    Just make sure the elevator has a high ceiling...this is a bad way to get down with headbangers (ouch)!:biggrin:
  12. 5P@N

    How do you calculate joules necessary to rotate an object?

    My bad. I've read the distinction between the two, but must have slipped.:rolleyes: I want to know the energy, and so need to provide the dimension of the object: let's say it's 1 meter long. I'm just making its characteristics up because I want to know the general approach that's necessary...
  13. 5P@N

    How do you calculate joules necessary to rotate an object?

    NOTE: THIS IS NOT A HOMEWORK QUESTION! I merely wish to know how to calculate the force necessary to rotate an object, say of 10 kg, from a certain downward diagonal direction of 45 degrees into an upright position considering only gravity. I'll need to use some formula involving torque...
  14. 5P@N

    Why a man on the Moon can jump 21 times higher than on the Earth

    I would like to propose the following method so as to answer how much higher a person could jump on the moon in the absence of any conclusive model or experiments... But before I do so, I would like to initially get a more precise conversion factor for the moon's gravity in relation to the...
  15. 5P@N

    What force needed to launch an object from moon to Earth

    Let me begin by sincerely thanking all of you for your comments and direction. It is proving most valuable in raising my level of competence as regards the physics and math involved. Steamking: Thanks...I now surmise (I believe correctly) that force is measured in Newtons, whereas energy is...
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