Physics, 27.03.2020 20:51 bsweeney3328
Older televisions display a picture using a device called a cathode ray tube, where electrons are emitted at high speed and collide with a phosphorescent surface, causing light to be emitted. The paths of the electrons are altered by magnetic fields. Consider one such electron that is emitted with an initial velocity of 2.10 107 m/s in the horizontal direction when magnetic forces deflect the electron with a vertically upward acceleration of 5.10 1015 m/s2. The phosphorescent screen is a horizontal distance of 5.5 cm away from the point where the electron is emitted.
(a) How much time does the electron take to travel from the emission point to the screen? s
(b) How far does the electron travel vertically before it hits the screen?
Answers: 3
Physics, 21.06.2019 17:00, tiffanibell71
What would the difference of spectral lines emitted by hydrogen gas in distant galaxies which is normally found at a wavelength of 21 cm on earth, be observed at 21.1 centimeters?
Answers: 2
Physics, 22.06.2019 05:20, luceridiaaz
Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity
Answers: 1
Physics, 22.06.2019 06:30, mehokkj
Alead ball is dropped into a lake from a diving board 5m above the water . it hits the water with a certain velocity and then sink with constant velocity in bottom . it reaches the bottom 5 second after it is dropped if g= 10m/s2 . find depth of the lake and average velocity of the ball ?
Answers: 1
Older televisions display a picture using a device called a cathode ray tube, where electrons are em...
Biology, 11.10.2019 07:30
Mathematics, 11.10.2019 07:30
History, 11.10.2019 07:30
Mathematics, 11.10.2019 07:30