A solenoid 3.22 cm in diameter and 14.1 cm long has 275 turns and carries a current of
19.6 A.
Find the magnetic flux through the circular
cross-sectional area of the solenoid.
Answer in units of T. m ?

1-10. need . physics. circular motion. 35 points

The slope of a velocity time graph over any interval of time gives the during that interval

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