A 300 kg cannon recoils with an acceleration of 50 m/s/s. What is the acceleration of the 20 kg cannonball?

Asample of a gaseous substance changes into liquid. this process is called (blank) and it takes place when heat is (blank) a gaseous system

Identify the theory that can be used to explain each phenomenon. answers diffraction: wave theory interference: wave theory reflection: both particle and wave theories refraction: both particle and wave theories

How many atoms of nitrogen are in the chemical formula ni(w on