In a vacuum, two particles have charges of q1 and q2, where q1 = +4.2c. they are separated by a distance of 0.31 m, and particle 1 experiences an attractive force of 4.5 n. what is the value of q2, with its sign?

11.44pC.

Explanation:

F = kq1q2/r^2

q2 = Fr^2/kq1

     = 4.5 x 0.31^2/4.2x 9 x 10^9

     = 1.144 x 10^-11C

     = 11.44pC

The sign is minus since they attracted to each other

a, c, d, e are all applying about success strategies.

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