An automobile starts from rest and accelerates to a final velocity in two stages along a straight road. each stage occupies the same amount of time. in stage 1, the magnitude of the car's acceleration is 2.8 m/s2. the magnitude of the car's velocity at the end of stage 2 is 2.6 times greater than it is at the end of stage 1. find the magnitude of the acceleration in stage 2.

What are chlorofluorocarbons and what impact do they have on the atmosphere?

Afigure skater is rotating at a rate of 200 revolutions per minute. what is the angular speed, in units of rad/s? 20.9 12000 200 3.33

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