Recent content by denniszhao

ohh you're right.. the second particle is actually a proton

Summary:: this is what I've done so far... i don't think it works since i believe the information given is not even enough. the formula I've used are 1. relativistic total energy = rest mass energy + kinetic energy (line 1, 3) 2. conservation of energy (line 4, 7, 8, 9) 3. conservation of...

Thank you so much! It is really helpful and I appreciate your patience and help!

thanks it makes sense that the average pressure applied on the side is dp/2

dFs is defined as the force due to the pressure on side walls. The left diagram shows the streamtube and differs from the right diagram which assumes the original pressure to be zero.

Sorry for not providing more details.

I got 3.3uW which is same as the given answer but the derivation isn't correct tho

I don't know which part gets wrong

but i can't cancel that part tho

the stirling cycle contains two isothermal processes (constant temperature) and two isochoric processes (constant volume). you can check out the diagram attached above.

Thanks! It is to solve for the heat of the isochoric processes and now i still need the heat of those two isothermal processes which need the volume change.

Homework Statement: I have no idea how to start with this problem. I am trying to look for all the incident angles, refraction and reflection angles. And i don't know what the two radii are doing with y. Homework Equations: critical angle = arcsin (n2/n1) snell's law for refraction...