An object with a charge of -4.1 μC and a mass of 18 g experiences an upward force, due to a uniform electric field, equal in magnitude to its weight.
a. Draw a free body diagram for the object. Write the Newton's 2nd Law equation(s).
b. What is the direction and magnitude of the force due to gravity?
c. Find the direction and magnitude of the electric field.
d. If the electric charge on the object is doubled while the mass remains the same, find the direction and magnitude of its acceleration.