Finding the mass after gaining elctrons

  • Thread starter Thread starter MRGE
  • Start date Start date
  • Tags Tags
    Mass
Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
Sign up Log in
1 reply · 5K views
MRGE
Messages
10
Reaction score
0

Homework Statement


A person scuffing her feet on a wool rug on a dry day accumulates a net charge of -73 µC. How many excess electrons does this person get?


Homework Equations



so i did 73x10^-6 / 1.602x10^19 and i got 4.5x10^14

but one of the questions is By how much does her mass increase?

The Attempt at a Solution



I have no idea how i would go about and in finding this.
 

Discussion

Physics news on Phys.org
One has the number of electrons. Now what is the rest mass of an electron? Use the two numbers to determine the total mass of electrons gained.
 

Similar threads

Circular orbit change after gaining mass ejected from sun

  • caitphys
  • · Replies 1 ·
  • Introductory Physics Homework Help
Replies
1