This force involves the attraction between charged particles.
select one:
a. strong nuclear
b. gravitational
c. weak nuclear
d. electromagnetic

By what primary heat transfer mechanism does the sun warm the earth?

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

Calculate a pendulums frequency of oscillation (in hz) if the pendulum completes one cycle in 0.5s.