Physics, 22.08.2019 23:20 destiny2521
The electrons in a beam are moving at 18 m/s. (melectron = 9.11 × 10^-31 kg, h = 6.626 × 10^-34 j ∙ s) (a) what is its momentum?
(b) what is its de broglie wavelength these electrons?
(c) if the electron beam falls normally on a diffraction grating, what would have to be the spacing between slits in the grating to give a first-order maximum at an angle of 30° with the normal to the grating?
Answers: 1
Another question on Physics
Physics, 21.06.2019 22:30
Aforce of 200 n is applied to an input piston of cross-sectional area 2 sq. cm pushing it downward 2.8 cm. how far does the output piston of cross-sectional area 12 sq. cm move upward? show all work.
Answers: 1
Physics, 22.06.2019 03:00
Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx hurrim timed
Answers: 1
Physics, 22.06.2019 05:00
At time t=0, a particle is located at the point (3,6,9). it travels in a straight line to the point (5,2,7), has speed 8 at (3,6,9) and constant acceleration 2i−4j−2k. find an equation for the position vector of the particle.
Answers: 2
Physics, 22.06.2019 06:30
=force × distance a. work b. velocity c. pressure d. momentum
Answers: 1
You know the right answer?
The electrons in a beam are moving at 18 m/s. (melectron = 9.11 × 10^-31 kg, h = 6.626 × 10^-34 j ∙...
Questions
Mathematics, 23.03.2021 16:30
Mathematics, 23.03.2021 16:30
Social Studies, 23.03.2021 16:30
Mathematics, 23.03.2021 16:30
Mathematics, 23.03.2021 16:30
Mathematics, 23.03.2021 16:30
Mathematics, 23.03.2021 16:30
Social Studies, 23.03.2021 16:30
Mathematics, 23.03.2021 16:30
Mathematics, 23.03.2021 16:30
