Recent content by StillLearningToronto

1. Homework Statement The Initial Mass Function (IMF) defines the distribution of stellar masses created in a star-forming event. The probability P(m)dm of forming a star with a mass between m and m + dm is given by P(m)dm = km−α dm where α is the exponent of the power law and k is a constant...

Im trying to figure out if its possible to measure the diameter of an object (in MPC) With the variables time (say I've observed something for 10 years) And after the 10 years I resolved that the diameter of the object is some angle in arc seconds. Or would I need more information to figure...

If I am given the variable of time (observed), and diameter is it possible to measure the distance of a galaxy? Or do I need more variables? Just trying to figure out the most simple way to go about doing something like that.

Good good, step one out of the way :P Yeah this was a typo, it was meant to say the ADU multiplied by the gain (2 electrons per ADU) minus the bias (1000ADU*2 electrons) so: A/D max = 65535ADU*(2electrons per ADU)-2000electrons This is the part i wasnt 100% sure on, but the way i saw it: if...

(Sorry for Length) 1. Homework Statement You have decided to use a CCD camera to check if a 16th magnitude quasar is variable. You can presume that all of the light of your quasar falls on one pixel. You know that a star with a magnitude of 0 would deliver 1 × 10^9 photons/second to one pixel...

Thank you so much ! Its a part of a bigger question I am working on, but i just wanted to make sure i was off to a good start (:

Homework Statement You have decided to use a CCD camera to check if a 16th magnitude quasar is variable. With your telescope/camera combination, you know that a star with a magnitude of 0 would deliver 1 × 109 photons/second to one pixel, so this allows you to work out the photons/second from...

Im very positive I am missing something. This is what i found online: Ekrest = mc2 Ekrest = (1.67*10^-27)(c)2 Ekrest = 1.5*10^-10 Ek= (1.5*10^-10)/√(1.9999*10^-4)-(1.5*10^-10) EK=1.047*10^-8J But i have NO idea how they got (1.9999*10^-4)

Question: Calculate the kinetic energy required to accelerate a single proton from rest position to 0.9999c. The mass of the proton is 1.67*10^-27 kg. Equations Used: Ek=(mc^2/√ 1-(v^2/c^2))-mc^2 Attempt at the problem: Ek=(1.67*10^-27kg)(3*10^8m/s)^2/√...