# Recent content by pfssassin

1. ### Marginal Error of Prayer Directions

Also I may have hit my questions before becoming annoying quota but I was wondering: does this measure the distance on the surface of the sphere or the direct distance between the two points?
2. ### Marginal Error of Prayer Directions

Random Place in D.C: 38.895112,-77.036366 Mecca: 21.427378,39.814838 cosL = sin(38.895112)sin(21.427378) +cos(38.895112)cos(21.427378)cos(-77.036366-39.814838) cosL = -0.097855196092127817015497218386228992559245305387623345867...
3. ### Marginal Error of Prayer Directions

Dude. You are ****ing sick. Wish I could pull some **** like that. Working a sample problem will post soon.
4. ### Marginal Error of Prayer Directions

Thanks a lot man. Couple questions: 1. To get y (looking thing) alone just take the inverse cos of the last equation right? 2. what is angular deviation? (googling returned nothing useful) 3. Whats this formula called? I want to see a sample problem so I can actually learn how it works. 4...
5. ### Marginal Error of Prayer Directions

That sounds good.
6. ### Marginal Error of Prayer Directions

Not sure what that means.
7. ### Marginal Error of Prayer Directions

What I am looking for is consider drawing a circle between New York (single point) and LA but the circle goes around earth and NY and LA are not necessarily on the opposite sides of the circle which lies on the sphere. If you change the direction of this sphere by 1 degree from NY, how far would...
8. ### Marginal Error of Prayer Directions

Yeah thanks. Just thought about it there cant really be a single forumla for it.
9. ### Marginal Error of Prayer Directions

Actually you are right... this is a math question. Seriously never really considered the fact. Just not a member to any math forums so I thought I'd ask here.
10. ### Marginal Error of Prayer Directions

If you are trying to pray towards Mecca for example (a small point on earths, assume spherical, surface) and you are standing on the exact other side your angle doesnt matter since every angle you face at will Cross mecca. Now my question is how do you go about calculating the effect of a 1...
11. ### UBER EASY QUESTION: just need to make sure.

Thanks. Got it. I did think about the mean value theorem but we did not have a v initial and v final but just a v avrg. In the midst of all these upscale formulas I forgot the basic s(x)-s_0=v_0 t + .5 a t^2; Well I can argue that I didnt do mechanics since last year but thanks a lot.
12. ### UBER EASY QUESITON: just need to make sure

haha wow I feel like an idiot. Thanks.
13. ### UBER EASY QUESITON: just need to make sure

Just a general question. If you drop a object (air resistance negligible) and you know the t initial is 0 and you know the t final is w/e you get on your stop watch. You do d/t to get average velocity of the fallen object. Now that you have the avrg velocity you know the V initial is zero...
14. ### UBER EASY QUESTION: just need to make sure.

Homework Statement Create a lab to find the gradational constant of the earth. Homework Equations a = d/(t^2) The Attempt at a Solution Just a general question. If you drop a object (air resistance negligible) and you know the t initial is 0 and you know the t final is w/e you...
15. ### Bizzare question on friction constant

Thanks a lot chief but I dont have that stuff at home! wish I had posted yesterday. Any other thoughts on what I can do with the data I have? I cant really redo this experiment (its do tmrw...)