A uniform electric field has a magnitude 2.40 kV/m and points in the +x direction.
(a) What is the electric potential difference between x = 0.00 m plane and the x = 3.90 m plane?
(b) A point particle that has a charge of +3.40 µC is released from rest at the origin. What is the change in the...
I get stuck almost immediately.
The torque for the weight of the board:
t=Fd
t=(Weight force?) (1.1 m)
I don't know how to find the weight for just that section of the board.
Am I even supposed to find that?
Happy new year to you too!
I honestly have no idea what I am doing. My teacher assigned this homework over break, and told us to teach ourselves, so I need a crash course in torque.
I have no idea what that means. Literally, I'm clueless.
Homework Statement
A uniform plank of length 4.7 m and weight 207 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support (see the drawing). To what distance x can a person who weighs 454 N walk on the overhanging part of the plank before it just begins to...