1. imagine you are holding an apple. a. does this apple have energy? how do you know? b. how could you increase the potential energy of this apple? c. how could you increase the kinetic energy of this apple? me

Aray of light traveling parallel to the principal axis of a concave mirror will be reflected through the mirror's

Write the correct abbreviation for each metric unit

Consider a uniformly charged ring in the xy plane, centered at the origin. the ring has radius a and positive charge qdistributed evenly along its circumference. a)what is the direction of the electric field at any point on the z axis? . b)what is the magnitude of the electric field along the positive z axis? use k in your answer, where k=14πϵ0. d)the ball will oscillate along the z axis between z=d and z=−d in simple harmonic motion. what will be the angular frequency ω of these oscillations? use the approximation d≪a to simplify your calculation; that is, assume that d2+a2≈a2. express your answer in terms of given charges, dimensions, and constants