Acar goes from a velocity zero to a velocity of 15 meters per second east in 2.1 seconds. what is the car's acceleration?

The substances that are necessary for producing of certain hormones and that store and transport vitamins

Which body part transports oxygen removes waste materials in carries nutrients to the body as part of the circulatory system

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