Mathew Murdock Messages 12 Reaction score 2 Thread starter Nov 2, 2020 #1 How did you find PF? Google search I am a physics student from Vietnam
BvU Science Advisor Homework Helper Messages 16,219 Reaction score 4,934 Nov 2, 2020 #2 Hello @Mathew Murdock , ##\qquad## ##\qquad## ! Have fun here !