Arocket is launched straight up with constant acceleration. four seconds after liftoff, a bolt falls off the side of the rocket. the bolt hits the ground 6.10s later. what was the rocket's acceleration?

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

Why do metals "give up" their valence electrons?

Match each type of lever with the correct diagram. 1. first-class 2. third-class 3. second-class