How many atoms of each element are in 4na3po4?

Your target variable is δf, the magnitude of the difference in frequency between the waves emitted from the sonar device and the waves received by the device after reflecting off the whale. write an expression for δf in terms of the relevant frequencies using the subscript notation introduced above.

Debbie places two shopping carts in a cart corral she pushes the first cart which then pushes a second cart what force is being exerted

How to tell if a molecule is polar or nonpolar with electronegativity