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1) An airplane is flying through a thundercloud at a height of 1900 m. (This is...

1) An airplane is flying through a thundercloud at a height of 1900 m. (This is very dangerous because of updrafts, turbulence, and the possibility of electric discharge.) If there are charge concentrations of 36 C at height 3400 m within the cloud and −43 C at height 1483 m, what is the strength of the electric field E at the aircraft? The Coulomb constant is 8.99 × 109 N·m2 /C 2 . Answer in units of V/m.

2) Find the magnitude of the electric field at a point midway between two charges +49.0 × 10−9 C and +86.2 × 10−9 C separated by a distance of 41.6 cm. The value of the Coulomb constant is 8.99 × 109 N · m2 /C 2 . Answer in units of N/C. Answer in units of N/C.

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