All resistors in the circuit are identical. All batteries are ideal with voltages of 12V and 6 V as listed. All connecting wires have negligible resistance. Rank in terms of total resistance (Req) greatest to least. Justify your ranking.

What is the magnification of a real image if the image is 10.0 cm from a mirror and the object is 50.0 cm from the mirror ? use the equation m=-di/do. a. -5.0 b. 5.0 c. 0.20 d. -0.20

Cathy is pedaling down a steep hill on her bicycle and wants to be able to coast up the next hill, which is 25 meters high, without pedaling. cathy and her bicycle have a mass of 75 kg. assuming her bicycle is 100% efficient, what would her speed have to be?

You notice the birds sitting on the electrical wires which of the following explain why the birds don't get shocked