What is the speed of an electron with kinetic energy (a) 850 eV, and (b) 0.50...

Question

Question

What is the speed of an electron with kinetic energy (a) 850 eV, and (b) 0.50 keV?

Answer 1

Answer #1

The kinetic energy of the object is,

Here, m is the mass and v is the speed of the object.

(a)

Convert the units of kinetic energy from eV to J.

Rearrange the equation for v

Substitute for and for.

Therefore, the speed of an electron is.

(b)

Convert the kinetic energy from keV to J.

Substitute for and for in.

Therefore, the speed of an electron is.

Answer 2

Similar Homework Help Questions

What is the speed of an electron with kinetic energy 780 eV ? What is the speed of an electron with kinetic energy 0.40 keV ?

A) What is the speed of an electron with kinetic energy 780 eV ? B) What is the speed of an electron with kinetic energy 0.40 keV ?
What is the speed of an electron with kinetic energy 760 eV ? What is the...

What is the speed of an electron with kinetic energy 760 eV ? What is the speed of an electron with kinetic energy 0.52 keV ?
What is the speed of an electron with kinetic energy 730 eV ? What is the...

What is the speed of an electron with kinetic energy 730 eV ? What is the speed of an electron with kinetic energy 0.38 keV ?

What is the speed of an electron with kinetic energy 730 eV ? What is the...

What is the speed of an electron with kinetic energy 730 eV ? What is the speed of an electron with kinetic energy 0.38 keV ? Thank you!
What is the speed of an electron with kinetic energy 700 eV ? Part A Express...

What is the speed of an electron with kinetic energy 700 eV ? Part A Express your answer to two significant figures and include the appropriate units. Part B What is the speed of an electron with kinetic energy 0.54 keV ?
Consider electrons of kinetic energy 5.29 eV and 529 keV. For each electron, find the de...

Consider electrons of kinetic energy 5.29 eV and 529 keV. For each electron, find the de Broglie wavelength (in nm), particle speed (in m/s), phase velocity (speed, in m/s), and group velocity (speed, in m/s). nm 5.29 eV electron de Broglie wavelength particle speed phase velocity group velocity m/s m/s m/s 529 keV electron nm de Broglie wavelength particle speed phase velocity group velocity m/s m/s m/s

For a free electron with 100 keV kinetic energy, calculate the: a) electron speed b) electron...

For a free electron with 100 keV kinetic energy, calculate the: a) electron speed b) electron momentum c) de Broglie wavelength of the electron
Calculate the De brogile wavelenth a) an electron with a kinetic energy of 100 eV, (b)...

Calculate the De brogile wavelenth a) an electron with a kinetic energy of 100 eV, (b) a proton with a kinetic energy of 100 eV, (c) an electron in the first Bohr orbit of a hydrogen atom.
Find the speed of an electron that has a kinetic energy of 2.07 eV. 1 eV= 1.602 x 10^-19 J. Answer in units of m/s. Ca...

Find the speed of an electron that has a kinetic energy of 2.07 eV. 1 eV= 1.602 x 10^-19 J. Answer in units of m/s. Calculate the speed of a proton with a kinetic energy of 2.07 eV. Answer in units of m/s. A parallel-plate capacitor has a capacitance Co. A second parallel-plate capacitor has plates with twice the area and twice the separation. What is the capacitance of the second capacitor? Calculate the energy stored in a 27.3 uF...

1. The total energy of a moving electron is 0.850 MeV. What is the speed of...

1. The total energy of a moving electron is 0.850 MeV. What is the speed of the electron in terms of c? A 0.306 c B. 0.854 c C. 0.933 c D. 0.799 c 2. Calculate the kinetic energy of an electron moving at 0.834 c. Express your answer in keV. A. 420 keV B. 350 keV C. 540 keV D. 480 keV