A student holds a spoon in a cup of water. Which of the following best explains why the part of the spoon seen through the jar looks different from the rest of the spoon? Group of answer choices

The water absorbs light hitting its surface.

The cup scatters light passing through it.

The cup reflects light hitting its surface.

The water bends light passing through it.

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