An astronaut takes an ipod onto the space shuttle. an identical ipod remains on earth. which statement about the pull of earth's gravity on the ipods is true?

Alexander calder's mobiles are an example of motion because it uses forces of wind and water.

When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical

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