Karma poured 8kg of hot water at 23°C to 2kg of hot water in a bucket and the final temperature was 37°C. What was the initial temperature of the hot water? Neglect the heat lost to the surrounding​

What is the fate of the electrons that interact with a specimen in an electron microscope?

Apersons beliefs and general outlook, which act like filters on the information they receive are called ?

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.