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Join Date: Mar 2007
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Yeah, we've been through this. Enough with the overanalyzing and "That's an impossible question" statements. It's just annoying, especially when the question can be answered and agreed upon the same by everyone.
Disclaimer: Nothing I say can be considered credible information (I wonder what that means about this disclaimer then).
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Join Date: Mar 2007
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What do you mean when you say the Earth like gravity is 10N? I don't think that's supposed to be measured in newtons.
Disclaimer: Nothing I say can be considered credible information (I wonder what that means about this disclaimer then).
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Join Date: Jul 2005
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lol.. hmm, I guess this question is unanswerable.. There is no real answer if g= 10N.. The question doesn't even make any sense..
.. just a very small taste of your own jackass medicine
.. just a very small taste of your own jackass medicine
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Join Date: Apr 2005
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Gravity is always measured in newtons in the UK? maybe the US is different?
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Master of puppets Im pulling your strings, blinded by me, you cant see a thing. Master! Master!
Master of puppets Im pulling your strings, blinded by me, you cant see a thing. Master! Master!
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gravity (g) is an acceleration, and is measured in m/s^2
Last edited by joshSCH : Apr 28th, 2007 at 3:30 pm.
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Last time i studioed physics gravity was a force?
Weight = mass x gravity
So if i i have a mass of 8 N and gravity is 10 N then i have a weight of 80kg
Weight = mass x gravity
So if i i have a mass of 8 N and gravity is 10 N then i have a weight of 80kg
TRY MY SUGGESTIONS AT YOUR OWN RISK
Master of puppets Im pulling your strings, blinded by me, you cant see a thing. Master! Master!
Master of puppets Im pulling your strings, blinded by me, you cant see a thing. Master! Master!
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Join Date: Jun 2005
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Oh, 10 m/s^2. Thanks for pointing that out.
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Posting Whiz in Training
The strength of a classical gravitational field is measured in N kg ^ -1 (Newtons per kilogram). On the surface of the earth this is measured to be about 9.8 N kg ^ -1. Apologies if this has already been said in the thread, but I'm in an internet cafe so in a rush. If no one minds I'll set another question seeing as the last one apparently went a bit "stale":
An imaginary new HD video system (called Purple - Ray) has been launched and the laser it uses to read the disks has a wavelength of 400 nm (4 * 10 ^ -9 m). The lens used has a numerical appature of 1.5. What is the minimum size the markings on the disk (that represent the data) could have and still be resolved by the laser?
Note: numerical aperture is a dimensionless quantity, hence the lack of a unit.
Steven.
An imaginary new HD video system (called Purple - Ray) has been launched and the laser it uses to read the disks has a wavelength of 400 nm (4 * 10 ^ -9 m). The lens used has a numerical appature of 1.5. What is the minimum size the markings on the disk (that represent the data) could have and still be resolved by the laser?
Note: numerical aperture is a dimensionless quantity, hence the lack of a unit.
Steven.
Hello, you're through to Steven on the BT Business technical help desk. Could I take your broadband telephone number please?
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Join Date: Mar 2007
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I've always known gravity to be measured in m/s^2. Of course the force of gravity could be 10N but that is completely dependent on the mass of the object that gravity acts on. If you use the equation F = (m1*m2*G)/(d^2) then G isn't measured in newtons or m/s^2. You get (Nm^2)/(kg^2). Unless I did something wrong.
Disclaimer: Nothing I say can be considered credible information (I wonder what that means about this disclaimer then).
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