Electrons are continually being knocked out of air molecules in the atmosphereby cosmic-ray particles coming in from space. Once released, each electron experiences anelectric force F due to the electric field Ē that is produced in the atmosphere by chargedparticles already on Earth.An electric field E with an average magnitude of about 150 N/C points downward in theatmosphere near Earth's surface, where a friendly bat named Gerald (pictured below) isflitting about, navigating via ultrasonic bleeps. To give Gerald some company, we wish to"float" a sulfur (S, with mass density ps - 2.1 × 10³ kg/m³) sphere weighing 4.4 N in thisfield by charging the sphere.(a) What charge (both sign and magnitude) must be used?(b) Why is this experiment impractical? Please give a quantitative answer.Hint: Humid air has a dielectric (breakdown) strength of 3.0 × 106 N/C.(c) What is the change AU in the electric potential energy of a released electron whenthe electric force causes it to move vertically upward through a distance d = 520 m?(d) Through what potential change does the electron move?

Concept: There are two different Questions. For the Parts (a) and (b) Since Electric Field is…

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