Recent content by 9une

Thank you! I will see it.

Why do you want to earn a PhD degree in physics?

What does a PhD degree mean to a physics student? Thanks in advance!

"Spin information is lost" means that we could read out the information we want after some time. If you once learn something about NMR, you will know this is due to relaxation. We usually consider spin-spin relaxation time(T2) and spin-lattic relaxation time(T1). After a period of time about T1...

no, as phy124 points out, µ is irrelevant if the cart has wheels and no brakes :wink: In my opinion, µ is decided by wheels and brakes. How could we say µ is irrelevant?

Hi, The cart is given three forces: gravity(W), support force(N) and frictional resisntance(F). If the cart is moving with constant velocity along the slope, the force along the slope should be zero, which means Wsinθ = F. As for dynamic frictional resistance, we have the equation F= Nμ, where...

No matter what fields you do, you should have the foundation. You can apply your CS skills to physics, but learning the baisc physics courses are necessary.

Spintronics and NMR are also my interests. My advice is to apply for graduate program. It will never be late. A BA in physics could do nothing about physics.