Spheres of Charge: a Non-Conducting Sphere of Radius R =

question 28

Multiple Choice

Spheres of charge: A non-conducting sphere of radius R = 7.0 cm carries a charge Q = 4.0 mC distributed uniformly throughout its volume. At what distance, measured from the center of the sphere, does the electric field reach a value equal to half its maximum value?

• A) 3.5 cm only
• B) 4.9 cm only
• C) 3.5 cm and 9.9 cm
• D) 3.5 cm and 4.9 cm
• E) 9.9 cm only

Analyze the structure of graduated tax and commission systems.

Utilize financial formulas to calculate future and present values of investments.

Calculate percentage changes and understand their implications in financial contexts.

Interpret and solve problems related to sales, taxes, and commissions.