For the above diagram, the pinecone is 25cm from the lens and is 9.5cm tall. If the focal length is 15 cm, calculate the distance/position and height of the image.

How are series and parallel circuits simililar? both have multiple paths for electrons to travel. both require resistors in their circuits. both require a switch to complete the circuit. both have at least one path for electrons to travel.

When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical

The electric potential a distance r from a small charge is proportional to what power of the distance from the charge? a. r^-1 b. r c. r^-2 d. r^2