A metal sphere of radius 10 cm carries a charge of 2.0 MicroCoulomb. What is the magnitude of the electric field 5.0 cm from the sphere's surface?

E = 7200 J = 7.2 KJ

Explanation:

The electric field due to a sphere is similar to the electric field due to a point charge. It is calculated by the use of the following formula:

where,

E = Electric Field = ?

k = Coulomb Constant = 9 x 10⁹ Nm²/C²

q = charge on sphere = 2 μC = 2 x 10⁻⁶ C

r = distance from the center of the sphere to the location = 5 cm = 0.05 m

Therefore,

E = 7200 J = 7.2 KJ

he kicked it 10 feet straight up into the air? i think this works.