Recent content by eggman100

@Doc Al - a.) Agreed I suppose, I was providing an argument in the terms of, rather than following the procedure in the book, why not say that you can do Sqrt(20h) and then you have the velocity, why do you need to provide all the calculations the book gives when that is simply what you need to...

However said that I copied the threads from another site obviously didn't read what I said. I said to you that I copied it from MY facebook thread, that was made by ME. Read first please, then post. No, I was just saying if you have the distance from S=D/T, then you are missing a value...

No I was in the end basically stating that, if you use Distance = Speed / Time, that is okay if you have two of those values, if you have one, for example, the height of the object at the start, and you do not have the speed or the time, then how could you work it out? Simply by just using the...

This WILL sound sketchy and far-fetched, but read every bit of information carefully, and you will hopefully understand, I know overall the reason why the objects fall together at the same rate is because there is no air-resistance, but working with formulas it shows how some things are...

How bad would the ingestion of 10ml^3 of NaOH be, if there is just enough water for the NaOH to dissolve? (Also, what about 25ml^3)? I have seen acid burns on a hand of a person almost two days after contact, but if it was ingested in aqueous solution, how bad would the 10ml^3 be? Would...

Yeah, I can see you like that. I was only trying to figure out my own personal problem, sure it is a concept, but don't forget that if "Love x 5 = 22" everyone knows that love would have to be 4.4 - it's just saying love the emotion is counted as X. When I get to a higher level sure, but I'm...

Ohhhh okay, reasonable enough explanation =) ^^

No the question I gave was for that when x,y,z (the point) is equal to ∞,∞,∞ <--- find r, phi and theta, I'm not talking about that, I'm just wondering why the angle for theta isn't 45' like phi is, because it's the same length for x,y,z all the angles (phi and theta) should be 45' like in an...

I read through your explanation, but you say that Phi and Theta are right angles, arent they not \pi/4? (45°) rather than 90° because if you imagined the X,Y,Z grid (Example here: ) http://upload.wikimedia.org/wikipedia/commons/thumb/4/4f/3D_Spherical.svg/558px-3D_Spherical.svg.png Can you...

How comes? I thought x,y,z could be any values? - including infinity? how would you generalise working with infinity in spherical co-ordinates?

(This is NOT homework) just my personal interpretation, because these are the formulas as you already know: r = √(x^2 + y^2 + z^2) φ = arctan(y/x) θ = arccos(z/r) using (x,y,z) = (∞,∞,∞) I come across a bit of a sinister problem: r = √(∞^+∞^+∞^) = √(3∞^2) which is right because if we just...

I'm sorry but that really doesn't help me solve my problem, I don't understand what you said, I mean all I wanted to do was convert the M/D into Kg (top/bottom) and km^3 from cm^3 at the bottom, and then just divide by 4/3∏ then 3√ to get my answer in Km's, but it just wasn't happening, any...

but then on my calculator i get 2.060910734 x 10^-7 <--- I don't understand if I have a volume of 206091073.4cm^3, how that can turn into a small decimal number for the radius in kilometers, especially when the mass is 2.473x10^23, its nothing like a neutron star, just a regular planet, so i...

Homework Statement Using mass = 2.473x10^23kg and Density = 7.481g/cm^3 work out the radius of said sphere,Homework Equations D=M/V 4/3∏r^3 The Attempt at a Solution D=M/V DV=M V=M/D Mass = 2.473x10^23kg V=2.473x10^23kg / 7.481g/cm^3 V=2.473x10^23kg / 0.007481kg/cm^3 V= 3.31x10^24 cm V=...

I have my answer of the doppler shifting as 2.5 meaning redshift, but what does this mean, 2.5 what? if its 2.5 'units' then how can I work out the speed of the object going from my Stationary position? it's all nice knowing for example my object could be going at 0.1m under the speed of...