What is the velocity of the electron in the first Bohr orbit of hydrogen atom ?

What is the velocity of electrons in'the first Bohr Orbit of Hydrogen atom:

Calculate the velocity of an electron in the first Bohr orbit of a hydrogen atom

Calculate the velocity of an electron in the first Bohr orbit of a hydrogen atom

Calculate the velocity of an electron in the first Bohr orbit of a hydrogen atom

What is the velocity of electron in Bohr's third orbit of hydrogen atom ? Also calculate the number of revolutions the electron makes in Bohr's third orbit in one second.

The velocity of an electron in the first Bohr orbit of hydrogen atom is 2.19 xx 10^(6)ms^(-1) . Its velocity in the second orbit would be

The velocity of an electron in the first Bohr orbit of hydrogen atom is 2.19 xx 10^(6)ms^(-1) . Its velocity in the second orbit would be

What is the orbital acceleration of the electron in the first bohr orbit of hydrogen atom ?