A light bulb with a resistance of 2.9 ohms is operated using a 1.5 volt battery at what rate is electrical energy is transformed in the light bulb

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

What practical value did astronomy offer to ancient civilizations?

Which of the following is not an appropriate unit for acceleration? (kg/12 mihr? m/min/sec cm/30c?