Three point charges q1, q2, and q3 are located at points (-3, 0), (0, 0), and (3, 0). the outer two are positive, while the one at the origin is negative. to calculate the electric force on another charge q at point (0, 3), we need "r hat" vectors towards charge q from the other three charges. find the three "r hat"'s.

solution:

vector will be given by

r1 from q1 :(0..3)+(3-0)=3(i+j)

"r1 hat" = r1

answer; (d) spontaneous processes are characterized by the overall conversion of order to disorder;

the simple machine has three main features. they are:

fulcrum is the center point or pivot point of the machine. effort is input force/ applied force. load is external force/ output.

the keisha 's machine labels are

x : load

y: fulcrum

z: lever