When placed in a lake, an object either floats on the surface or sinks. it does not float at some intermediate location between the surface and the bottom of the lake. however, a weather balloon floats at some intermediate distance between earth's surface and the top of its atmosphere. explain.

Specific heat refers to the amount of heat required to change 1 gram of a substance by degree(s) celsius

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.

Which of the following describes how a microwave heats food