Recent content by GRAvit__

Oh ooops thanks ok i'll change that but still don't get the right answer

Homework Statement Calculate the EMF induced in a 5.0 cm by 2.5 cm rectancular coil containing 150 loops if it rotates at 28 Hz in a 0.014 T magnetic fieldHomework Equations Φ=BA ε=-N ΔΦ/Δt The Attempt at a Solution Φ=BA =.05m x .025m =1.25 x 10^-3 ε=-N ΔΦ/Δt =150 x (1.25x10^-3) /...

(-)-------(m)---------(+) <----- ...<------- So you would just take out the negative and add it up? Negative is only referring to direction in this case?

The electric field would point away from a positive charge The electric field would point towards a negative charge

1. What is the magnitude and direction of the electric field strength midway between a +60uC charge and a -30uC charge, if the charges are 2.0m apart? 2.E=kQ/r^2 3. E1=Kx-30u/1 E2=-2.75x10^5 E2=kx60u/1 E2=5.4x10^5 Etotal=E1 + E2 ----> 2.7x10^5 N/C towards the - charge (my book says i have...

Ok i finally got thanks Just one thing is confusing me and that is how the proton and the electron have the same electrical charge? I was under the impression they were different or atleast the electron had a (-) ?

Ok i went through it again so is the elementary charge be considered the proton charge = 1.60 x 10^-19 and electrical charge would be 1 C = 6.24 x 10^18?

Homework Statement What is the force of attraction between a proton and an electron in a hydrogen atom, if they are 5.00 x 10^-11m apart? Homework Equations F=kQ1Q2/r^2 The Attempt at a Solution I really don't know where to go from here since i don't know the charge of the proton...