If the pressure is 100,000 pa, the volume is 2 m3, r is 8.314, and the temperature is 100 k, which is closest to the number of moles (n) of gas? a. 1 b. 240 c. 400 d. 20

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2

If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.

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