The answer is A.
t = ( 2h / g )^1/2 = ( 2 x 6.4 / 9.8 )^1/2 = 1.14s
protons and neutrons in the atom.
Explanation:
The mass number of an atom of carbon represents the total number of protons and neutrons in the atom.
Mass number = number of protons + number of neutrons.
- The mass of an atom is concentrated in the nucleus of the atom.
- The particles in the nucleus are called nucleons are they are made up of the protons and neutrons.
- Protons are positively charged.
- Neutrons carry no charges.
- Together, they make mass of atom.
- The mass of electrons are negligible
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Explanation:
We have,
Radius of pizza, r = 18 m
Potential difference, V = 575 V
Stored electrical potential energy, E = 3.31 J
The area if an air-filled capacitor with parallel plates is equal to that of the pizza. It means,
The stored potential energy in a capacitor is given by :
C is capacitance
The formula of the capacitance of a parallel plate capacitor is given by :
d is plate separation of this capacitor