Recent content by Tom-Physics

Homework Statement Hi! I have trouble with calculating the upward and downward plasma speeds. I have the necessary data and an equation that is useful (I think), but I'm stuck. Homework Equations The shock jump number Zs=3 in this case , and I've calculated the shock wave speed (555 km/s)...

Thanks buddy, you've helped me a lot!

Great then. I believe that I should use 2*pi , they always begins with the "most obvious" assumptions.

Then φ should be 2*pi radians, for one revolution

Oh, sorry. It is angular displacement, not velocity. I know, I think that I'm trying to make it more difficult : / All I can think of is that φ − φ0 should be 2*pi

Okay, now I get it. The thing is that I don't know what to do with φ − φ0, I'm stuck here

I know that the Sun has a sidereal rotation period at the equator of ∼25 days, which should be Ω (give 25 days in radians). How can I implement your equation in the one that I mentioned from the beginning? R − R⊙ = − VSW Ω (φ − φ0) --> a*θ -R⊙ = − VSW Ω ? But then I don't have the heliocentric...

I assume that I will need to insert the equation you gave me in R − R⊙ = − VSW Ω (φ − φ0) , is it for Ω? Or would it replace φ − φ0 instead? Sorry, but this problem is a little tricky.

Okay, a constant then. Am I supposed to give it a value or change the formula to find it? Also, can I say that θ. is 2*pi ?

Thanks, I'll give it a try tomorrow :) is a=9.8 m/s^2?

Homework Statement Hey! I have trouble with an exercise that I need help with. Here it is: The magnetic field lines for the average interplanetary magnetic field (IMF) follow Archimedean spirals. i) Find the heliocentric distance r in Astronomical Units (AU), where a field line has wrapped...