The difference is one is a written formula that describes a molecule, the other is a visual representation of the molecule. for example the hydrocarbon butane has a molecular formula of C4H10, whereas the molecular model would depict 4 Carbon atoms (either represented by colour coded dots or the letter C) with single bonds (one straight line) connecting them to the 10 Hydrogen atoms (either differenly coloured dots or a H)
Answer:
2.49379624842 N
Explanation:
P = Pressure = 45 kPa
d = Diameter of eardrum = 8.44 mm
A = Area = 
F = Force
Pressure is given by
The outward force is 2.49379624842 N
The ball would move about, 674 kilometers. I think I’m correct. Somebody correct me if I’m not.
<span>So, average angular velocity = angle/time = 90/1.5 = 60deg/second = (pi/3 radians/second) </span>
