1. A rope that makes a 15° angle with th
horizontal pulls a block weighing 3N
distance of 10 meters to the right at a
constant velocity. The tension in the
is a 2 N force. How much work is don
by the rope acting on the block in the
horizontal direction? Let F, be the
tension in the rope and Ax be the
displacement in the x-direction.
28.98 )
0 20 )
189.34 ]
O 19.32)

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