A negative charge of -0.525%u03BCC exerts an upward 0.205N force on an unknown charge 0.310m directly below it.
What is the unknown charge in microcoulombs?
What is the magnitude of the force that the unknown charge exerts on the -0.525%u03BCC charge?
What is the direction of the force that the unknown charge exerts on the -0.525%u03BCC charge? Upward or downward?