Select the examples of situations in which an object is starting to rotate even though the sum of the forces exerted on the object is zero. Check all that apply.
Two forces being exerted on the opposite ends of a meter stick; the forces have the same magnitude but are in opposite direction, the lines of action of the forces do not coincide.
A CD that has just been inserted into a CD player.
Two forces being exerted on the opposite ends of a meter stick; the forces have the same magnitude and direction, the lines of action of the forces do not coincide.
A boy turning the wheel of a parked bicycle.

Biased means unfair but that's all ik

Answer: a charge of -1.0  × 10⁻⁴ c must be placed  at x = 26 m.the sign of the charge will be the same sign as the  -4.0  µc charge.======electricstatic force between two point charges  is given by    where k is coulomb's constant,  8.99×10⁹  n·m²/c², q₁ and q₂ are the point charges, and r is the distance between the two point charges.assign positive to q₁let q₁ =  6.0 µc, q₂ = -4.0  µc, q₀ represent the charge at the origin, and q₃ represent this new charge to place.the charge at the origin q₀ would experience the following force f₀₁ from q₁, with r = 6.0 m (note that 1  µc = 10⁻⁶ c)    the force from q₂    the force from q₃    the net force on the origin charge, q₀, has to be zero for no electrostatic forcehaving an equation where k and q₀ can be divided out of the equation will allow us to solve for q₃    isolating:     a charge of -1.0  × 10⁻⁴ c must be placed  at x = 26 m.the sign of the charge will be the same as the  -4.0  µc charge

Motion i think. hope it