Physics, 08.10.2019 01:10 nayelimoormann
The electron gun in a tv picture tube accelerates electrons between two parallel plates 1.2 cm apart with a 30 kv potential difference between them. the electrons enter through a small hole in the negative plate, accelerate, then exit through a small hole in the positive plate. assume that the holes are small enough not to affect the electric field or potential. a)what is the electric field strength between the plates? b)with what speed does an electron exit the electron gun if its entry speed is close to zero? note: the exit speed is so fast that we really need to use the theory of relativity to compute an accurate value. your answer to part b is in the right range but a little too big.
Answers: 3
Physics, 22.06.2019 01:00
4. who was the first one to measure the speed of light and conclude that it is finite? 5. who was the first philosopher who thought the speed of light is finite? 13. what is the speed of light numerically? 14. give an example of something moving faster than light 15. give an example for some particles or waves that
Answers: 1
Physics, 22.06.2019 14:00
Ascientific blank must be testable and capable of being proven false?
Answers: 1
Physics, 22.06.2019 21:20
An electron is ejected into a horizontal uniform e⃗ field at a parallel horizontal velocity of v0. assume the electron's initial position x0, initial velocity v0, time t, magnitude of electric field e, electron's mass m, and the magnitude of the electron's charge |e|. ignore the force that earth exerts on the electron. assume the e⃗ field is in the same direction as the initial velocity. part a define the equation for the electron's velocity. express your answer in terms of the variables v0, |e|, t, e, and m.
Answers: 3
The electron gun in a tv picture tube accelerates electrons between two parallel plates 1.2 cm apart...
Mathematics, 31.07.2019 00:30
Arts, 31.07.2019 00:30
Mathematics, 31.07.2019 00:30
Mathematics, 31.07.2019 00:30
Computers and Technology, 31.07.2019 00:30
Geography, 31.07.2019 00:30
Mathematics, 31.07.2019 00:30
Mathematics, 31.07.2019 00:30