Answer:
A. 8
Explanation:
Atomic number of oxygen = 8
Oxygen is the 8th element in periodic table.
Atomic no. = 8, means one oxygen atom has 8 protons. Now, because the atom is neutral, so number of electrons = no. of protons in an atom.
Hence, the number of electrons in a neutral oxygen atom is 8.
The potential energy stored in a capacitor is given by:
where
C is the capacitance of the capacitor
V is the potential difference across the plates of the capacitor
In our problem,
Therefore, the potential energy of the capacitor is
Answer:
30Ω
Explanation:
To calculate the equivalent resistance in the circuit, do the following:
Step 1:
10Ω and 20Ω are in series connection. Therefore their equivalent is: 10 + 20 = 30Ω
Step 2:
The equivalent resistance (30Ω) obtained from the above is in parallel connection with 30Ω resistance shown in the diagram above.
Therefore their equivalent is given by:
1/30 + 1/30 = 2/30 = 1/15.
Now invert to obtain the equivalent
Therefore, the equivalent is 15Ω
Step 3:
Determination of the overall equivalent of the resistance of the circuit.
The new equivalent resistance 15Ω obtained above is in series connection with 15Ω resistance in the diagram above.
Therefore their equivalent is given by:
15Ω + 15Ω = 30Ω
Therefore, the equivalent resistance in the circuit is 30Ω
Copernicus's heliocentric theory stated that the planets orbited in perfectly circular orbits. In reality, they are shaped like ellipses (ovals).
I think you mean for those fractions to be multiplied.
In that case, you get
kg - m / sec² = Newton .
