Final answer:
The charge on the hairy ball can be calculated using the given equation.
Step-by-step explanation:
The charge on the hairy ball can be calculated using the equation:
Charge = Mass x Electric field strength x String length / sin(θ)
Where the mass of the ball is 0.2 kg, the electric field strength is determined by the birth month as given, the string length is 0.25 m, and θ is the angle chosen. For example, if θ is 30 degrees:
Charge = 0.2 kg x (Birth month N/C) x 0.25 m / sin(30°)