1. A densidade do nitrogênio nas condições normais de temperatura e pressão é igual a 1,24507 kg/m³. Qual a massa de 200 cm³ de
1 answer:
You might be interested in
Answer:
Explanation:
= Avogadro's number =
e = Charge of electron =
k = Coulomb constant =
Z = Atomic number of water = 18
M = Molar mass of water = 0.018 kg/mol
m = Mass of person
The charge is given by
Total number of protons and electrons in each sphere
Electrical force is given by
The electrostatic force of attraction between them is
Answer:
<em>The distance covered by comet is </em>
Explanation:
Speed is defined as the rate of change of distance with time. It is given by the equation speed=
Thus distance=
In this problem it is given that speed of comet=
time travelled by the comet= 4 hours
Thus distance=
=
=