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)...
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
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.
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...