Recent content by Physics53

Homework Statement Homework EquationsThe Attempt at a Solution 2sin3x=1 OR 2sin3x= -1 sin3x=1/2 sin3x= -1/2 From the unit circle and in accordance with the domain there are 3 solutions (B) But the answer is (C) HOW?

Thanks

If I do M=2E/c^2 is get the correct answer which is 1.047x10^-35, but where did the 2 come from ( i just did trial and error method right now).

Sorry about that, those were typos, fixed them up now, also i understood the notion that we were finding the mass of one photon, but how would i mathematically solve it thanks

Hi, stuck on this question, hoping someone could help 1. Homework Statement Two identical photons of wavelength 4.22x16^-7m are created when a certain amount of matter M, is converted into energy, calculate the Mass (M) The Attempt at a Solution E= hf which is hc/wavelength E= 4.71x10^-19J...

So does this mean I consider gravity of Earth as my centripetal velocity and therefore: g= GM/r^2, but i still have a query, if you could kindly clear this up for me, why can't we use the centripetal formula in this question.

Oh I see what you mean, are you implying that I solved centripetal velocity instead of centripetal acceleration?

Hi, I've reread it many time, but i still feel confused

Homework Statement Hi, I am stuck on this question: A satellite of mass 1200 kg is in orbit around the Earth at a distance of 22000 km from the centre of the Earth. Calculate the magnitude of the centripetal acceleration of the satellite at this distance. The Attempt at a Solution I did...