How do I find the direction of the force on a charge when I have two charges?? I know how to find the magnitude and that’s by using F = (k|q1||q2|)/d^2, but I have no idea on how to find the direction. For example if I have charge 1 and charge 2, if I find the direction of the force of charge 1 on 2 to be directed to east, will the direction of the force of charge 2 on 1 also be east or will it west? ALSO do the charges matter and if they do how do I use them to find the directions? Please help I’m trying to understand this lesson, I have an exam in two days!! I will mark your answer as the brainliest!

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

  distance on the y-axis and time on the x-axis.

explanation:

the instantaneous velocity = change in position/time taken

the slope of the graph should give instantaneous velocity.

  slope of a graph = change in value of y -axis / change in values of x -axis

  comparing both the equations

    change in value of y -axis = change in position

  change in values of x -axis = time taken

so position values should be on the y axis and time values should be on the x axis.

distance on the y-axis and time on the x-axis.