A0.717kg block is attached to a spring with spring constant 19.32n/m. while the block is sitting at rest, a student hits it with a hammer and almost instantaneously gives it a speed of 79.856cm/s. what is the amplitude of the subsequent oscillations in meters?

Athin nonconducting rod with a uniform distribution of positive charge q is bent into a circle of radius r. the central perpendicular axis through the ring is a z-axis, with the origin at the center of the ring. a) what is the magnitude of the electric field due to the rod at z = 0? n/c (b) what is the magnitude of the electric field due to the rod at z = infinity? n/c (c) in terms of r, at what positive value of z is that magnitude maximum? r (d) if r = 4.00 cm and q = 9.00 µc, what is the maximum magnitude? n/c