11/21 Fourth Period

Thank you all for working so hard on the assignment yesterday.  There’s a new, similar assignment today.  Only 3 problems, but much more difficult (and worth considerably more points.)

Some hints for today:

First μ is a prefix meaning micro, or 10^-6.  So when you see 5.7μC, we’re talking about 5.7*10^-6 coulombs

Second, remember all of your rules about vectors, vector addition, and how to combine vectors from 2 dimensions into 1.

A really helpful tool: Hyper Physics Coulomb Force Calculator

For an Electric Field calculation, Q2 is usually just a single electron, or a single proton.  Use the calculator above, then divide the answer you get by the charge of that single electron.