A0.30-kg flying pig toy is attached to the ceiling with a string. when the pig’s wings flap, it moves at a constant speed of � = 2.00 m/s in a horizontal circle of radius � = 0.25 m. find the angle � the string makes with the vertical.

58.5 deg

Explanation:

= mass of the pig toy = 0.30 kg

= speed of the toy = 2 m/s

= radius of the circle = 0.25 m

= Angle of the string with the vertical = ?

= Tension force in the string

Using equilibrium of force in vertical direction

                                    eq-1

Along the horizontal direction, the component of tension force provides the necessary centripetal force, hence

                                 eq-2

Dividing eq-2 by eq-1

= 58.5 deg

stands for electromotive force and it is measured in volts. despite its name, it is not actually the force in the sense of being a "pushing" or "pulling" (not measured in newtons).an equation that relates emf,  ℰ,  to a battery's terminal voltage, v, current, i, and internal resistance, r, is    ℰ = v + irin this case, the emf can be interpreted as a voltage—a difference in electric potential.i would not say that it would be considered an energy. if emf can be defined as the energy/work per a unit charge from a battery or other electric source, then it is not strictly energy.

None. nothing. zero. zilch.