a sphere of mass 100grams of radius a=2cm falling vertically through air of density d=1.2kg/m3 attains a steady velocity v=30m/s²,if the returning force on the sphere is given by F=Kax Py Vz ,where k is a non dimensional coefficient, use the method of dimensions to find the value of x ,y and z​

What sort of waves exhibit the doppler effect?

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.

Using a caesar cypher with an offset of three characters (a -> d, b -> e, z -> c), what would be the correct cypher text for the plain text "attack at dawn"?