Matter with no definite volume and no definite shape is a .

Gam radio signals can usually be heard behind a hill, but fm often cannot. that is, am signals bend more than fm. explain. (radio signals, as we shall see, are carried by electromagnetic waves whose wavelength for am is typically 200 to 600 m and for fm about 3 m.)

If y gets smaller as x gets bigger and y have an relationship?

What does the law of conservation of mass state?