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Solve the all given parts of following question:

Question: As a crude model for lightning, consider the ground to be one plate of a parallel-plate capacitor and a cloud at an altitude of 450m to be the other plate. Assume the surface area of the cloud to be the same as the area of a square that is 0.60km on a side. (Dielectric strength of air is 3.0 × 106 V/m)

Part I: What is the capacitance of this capacitor?

C = ______ F

Part II: How much charge can the cloud hold before the dielectric strength of the air is exceeded and a spark (lightning) results?

Q = _____C

I need help to solve the above question and express your answer using two significant figures.

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