A 4.0-ω resistor, an 8.0-ω resistor, and a 10.0-ω resistor are connected in series across an 11-V battery. The total potential difference across the 4.0-ω and 8.0-ω resistors is:

In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.

The star betelgeuse is about 600 light-years away. if it explodes tonight, a. we'll know because debris from the explosion will rain down on us from space. b. we'll know it immediately because it will be brighter than the full moon in the sky. c. we won't know about it until 600 years from now. d. none of the above.

Greg drew a diagram to compare two of the fundamental forces. which labels belong in the areas marked x, y and z? gravitational force electromagnetic force x. attractive y repulsive z: infinite range x: infinite range y attractive z. repulsive x. always attractive y: infinite range z: attractive or repulsive x. attractive or repulsive y infinite range z: always attractive