A resistor with resistance R and an air-gap capacitor of capacitance C are connected in series to a battery (whose strength is "emf").

(a) What is the final charge on the positive plate of the capacitor? (Use the following as necessary: C, emf.)

Q =
(b) After fully charging the capacitor (so there is no current), a sheet of plastic whose dielectric constant is K is inserted into the capacitor and fills the gap. Explain why a current starts running in the circuit. You can base your explanation either on electric field or on electric potential, whichever you prefer.
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(c) What is the initial current through the resistor just after inserting the sheet of plastic? (Use the following as necessary: R, K, emf. Note that the K is an upper-casek.)
I =
(d) What is the final charge on the positive plate of the capacitor after inserting the plastic? (Use the following as necessary: C, K, emf. Note that the K is an upper-case k.)
Qnew =

If forces acting on an object are unbalanced, which factors may result fron an unbalanced force? check all that apply

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