The speed of electron be 183.73 m/s.
The energy held within an object is known as potential energy. There are several different types of potential energy, including gravitational potential energy, elastic potential energy, and electric potential energy. An object's energy as a result of the overall charge it contains is known as its electric potential.
Given parameters:
Distance between proton and electron: d = 0.03 m.
Let, at that point the speed of the electron be v.
So from conservation of energy:
Kinetic energy of electron + potential energy of electron = 0
1/2×mv² - 1/(4πε₀)(e²/d) = 0
⇒v = √(2e²/m(4πε₀)(d))
= √( 2 × (1.6 ×10⁻19)²× 9 × 10⁹/9.1093837 × 10⁻³¹×0.03) m/s
= 183.73 m/s.
The speed of electron be 183.73 m/s.
Learn more about potential energy here:
#SPJ2
softer; less
B.
harder; less
C.
lighter; less
D.
heavier; less
It is an ion.
A hydrogen atom is an atom of the chemical element hydrogen.
The electrically neutral atom contains a single positively charged proton and a single negatively charged electron bound to the nucleus by the Coulomb force.
An atom is a neutral species.
Hence, it must have same number of electrons and protons. On other hand, ions have charge.
So, the number of protons and electrons are not same.
According to the question,
Hydrogen has one proton, two neutrons, and no electrons.
This signifies that overall charge of species is +1.
Hence, it is an ion.
Learn more about hydrogen atom here:
#SPJ2
b. refraction.
c. diffraction.
d. polarization.