posted by Josh .
A -3.5uC charge experiences a 13 ihat-N electric force in a certain electric field.What force would a proton experience in the same field?
I got -7.28*10^-18
I got -45.5 from multiplying 13 by -3.5
What am I doing wrong?
I would have just done a proportion:
Force= 13N*(-3.5E-6/1.6E-19)= I don't get your answer.
I got -2.84E14 plugged it in and got the wrong answer
change the proportion to
check that thinking.
ok both ways were wrong, you use cross multiplication: 1.6E-19/F x -3.5E-6/13N
F(on proton)= (13N *1.6E-19)/ -3.5E-6