A thread is tied to a 2.50-gram pith ball and attached to the ceiling at a location of a uniform electric field with an intensity of 5.00x102 N/C. The pith ball experiences a force which causes it to deflect from an otherwise vertical alignment by an angle of 12.6° from the vertical. Use a free-body diagram and electrostatic principles to perform the following calculations.
a. Determine the force of gravity acting upon the pith ball.
b. Determine the vertical component of the tension force of the thread.
c. Determine the horizontal component of the tension force of the thread.
d. Determine the quantity of charge on the pith ball.
e. What type of charge - positive or negative - does the pith ball possess?
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