Recent content by Rocko

anyone have a clear definition of how to do a cross product?

How do you find the cartesian coordinates of vancouver? (N49 12 00, W123 14 00) radius of Earth 6372km.

ok i will read up on dot and cross products as we haven't even touched those yet in class. I am in a geomatics course 1st year so we are just stepping into spherical trig and haven't learned about vectors yet ?? seems bizarre. I did learn about them many years ago in 1st year physics but have...

I guess this one is too hard for all you wizes. Thanks anyway.

How would one find the latitude and longitude of the most northern point traveling from Vancouver to New York along the shortest path (great circle)?

Oh Really, i don't see it! Every equation i come up with has an extra variable. i have found: angle 3 + angle 2 = 60degrees DA sin(95deg)=1000sin(angle2) or DP sin(120)=1000sin(angle2) and DP sin (60deg)=DA sin((95deg) and similar for angle3

I believe that to be so, i just haven't been able to find the angle 3 or angle 2, but maybe i am overlooking something.i will study it some more.

Here is a file i created of a problem I was asked if see if you have what it takes:

I can imagine only 2 different perfect circles in the physical world which may seem kind of like the same idea: 1. 2 of the smallest physical particles (not sure if there is a clear definition what this is) in a completely empty space, by that i mean nothing else exist besides them and set 1 as...

oh i certain realize there is no anti-Rocko in all probability its still just probability, there are anti-particulates of me somewhere, no? they just have not all conglomerated to make a negative of myself. However this is not my point. I was merely tryin to get clear what an idea of...

after 3 days and many scrap pages i finally think i come up with a answer thanks Goku, you know i tried that method right off the start but thought the algebra would just be to complex to carry thru so i scrapped the idea, but after confirmation i knew it was what needed to be done did you get...

3 days struggle I guess i errored somewehre along the waybut i reworked it with the last diagrams and just brute force plugged the numbers through and i believe i got the correct answer now i used cosine law and the identity: Cos(180-X)=-Cos(X) so if you care to test your answer vs mine i am...

Ok, i am thinking about some basic experiments i have read about like the double slit experiment where the interference pattern cause buy 1 photon suggests that that photon is in 2 positions at the same time. This being true the time for it to get from say A to B to me seems to be zero...

Ok I worked it out, I think now i have no idea if i am right or not but i found the height to be about 67.6437m if anyone gets a number anything close to this please let me know. thanks diane, i found your method hard to follow at first but i got it. funny thing is i never had to use cosine...

any trig genius's ? come on all you brainiacs let me know how to do this one.