A real battery (modeled as an ideal emf device in series with an internal resistor) is connected to a lightbulb. As the battery ages, its internal resistance increases while the internal ideal emf device remains unchanged. As the battery ages, what happens to a. the terminal potential of the real battery.
b. the current in the circuit.
c. the light emitted.

Electric field of the earth. the earth has a net electric charge that causes a field at points near its surface equal to 150 n> c and directed in toward the center of the earth. (a) what magnitude and sign of charge would a 60-kg human have to acquire to overcome his or her weight by the force exerted by the earth’s electric field? (b) what would be the force of repulsion between two people each with the charge calculated in part (a) and separated by a distance of 100 m? is use of the earth’s electric field a feasible means of flight? why or why not?

Which basic property determines a colored light's placement on the spectrum of visible light? a. speed b. frequency c. amplitude d. velocity

Explain teen pregnancy from a sociological perspective.