Recent content by noreally

I found parts 1 and 2 but am stuck on finding Vmax at my Rmin value without knowing the Rmax to be able to calculate the semi-major axis and eccentricity.

Really need help with this past exam question for revison: Homework Statement A probe performs slingshot maoeuvre around planet. Mass of planet is 9x10^22kg. Mass of probe is 4x10^2 kg and approaches planet from a great distance with relative speed 2x10^3 m/s and impact parameter 6x10^7...

Thanks for the reply, yes the object is symmetrical as the next part of the question is that its rotating about its symmetry axis r=0.

Homework Statement An obect whose mass is distributed according to function m(r)=m0e-r, for r ranging from 0 to ∞. Calculate total mass of the object. Write down and evaluate appropriate integral. 2. The attempt at a solution well, I wasnt sure really how to start but thought it may be...

Thanks for the clarification, that makes sense and also in terms of the dimensional analysis which now cancels. Many thanks!

h is planks constant (Js), k is the Boltzmann constant (J/k), t is temp (k) and v I am unsure on, which is why I am struggling. Thus far i got that they cancel to leave s(then units for v). Confirmation on v would be maybe a part 2 to my question. thanks for the reply!

Hi all! It was stated that in planks radiation law by my lecturer thathv/kt is dimensionless but my mediocre brain can't do the analysis. Try as I might I also can't find the relevant units to prove it. If someone could help I would be eternally grateful. p.s. This is my first post...