When a 1.50v battery is shorted by a copper wire whose resistance can be ignored, the current through the copper wire is 2.75 a. what is the internal resistance of the battery?

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?

How many meters will a car travel if its speed is 45 m/s in an interval of 11 seconds? question 2 options: a) 450 meters b) 495 meters c) 4.09 meters d) 498 meters

In this thread, i would like you to comment on the nature of light and how operation of telescopes. light has a duality of a particle and a wave; which one affects your life? also how does light interact with optics inside telescopic systems? answer these questions in two paragraphs. then respond the another students response.