In large CRT televisions, electrons are accelerated from rest by a potential difference of 23.88 kV and shot onto a phosphorescent screen to produce an image. What is the speed of the electrons when they reach the screen? ( qe = 1.602 x 10 19C ;mel = 9.11 x 10 31 kg) %3D Answer: x10' (express your answers in tenths place or one decimal digit only)

In large CRT televisions, electrons are accelerated from rest by a potential difference of 23.88 kV and shot onto a phosphorescent screen to produce an image. What is the speed of the electrons when they reach the screen? ( qe = 1.602 x 10 19C ;mel = 9.11 x 10 31 kg) %3D Answer: x10' (express your answers in tenths place or one decimal digit only)

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

In a lightning flash the potential difference between a cloud and the groundis 1.0 x 10 9 V and the quantity of charge transferred is 30 C.a) What is the change in energy of that transferred charge?b) If all the energy released could be used to accelerate a 1000-kgautomobile from rest, what would be its final speed?c) If the energy could be used to melt ice, how much ice would it melt at0⁰C? (heat of fusion of ice is 3.3 x 10 5 J/kg)
Please see attached question
An electron initially at rest, is allowed to accelerate through a potential difference of 1 V, gaining kinetic energy KEe, whereas a proton, also initially at rest, is let accelerate through a potential difference of 1 V, gaining kinetic energy KEp. As ∣qe∣ = ∣qp∣ but mp >> me, therefore, Group of answer choices KEe >> KEp KEe << KEp KEe = KEp All we can say, is KEe ≠ KEp
6. What is the final speed of a electron that has an initial speed of 2 x 106 m/s that is accelerated through a potential difference of 150 V?
2. In proton-beam therapy, a high-energy beam of protons is fired at a tumor. The KE of the protons is used to kill cells in the tumor. For one patient, it is desired to deposit 0.1 J of proton energy into a tumor. To create the beam, proton at rest are accelerated through a potential difference of 10 MV (megavolts). a) What is the KE of a single proton fired at the tumor? b) How many protons must be fired at the tumor? ans. 6.25×1010 protons
Please answer this with in 30 mins to get a thumbs up! Show neat and clean work !
A cathode-ray tube accelerates electrons to a speed of 26500 kms−1V. What is the potential difference across the tube?
Before liquid crystal display LCD computer and television screens, the screens were cathode-ray tube CRTS, in which a bean of electrons was shot towards a Phosphorescent screen at high speed and deflected by electric fields in order to direct the beam to the right place on the screen so that it would form the picture. In a typical television, the speed of the electrons is 1 x10^8 m/s. If the television set is placed so that the CRT beam is horizontal heading east in a place where the earths magnetic field is 5×10^-5 and points horizontally northward what will be the magnetic force on the electron?
5. What is the potential difference required to accelerate a deuteron of mass 3.3 x 10-27 kg and charge 1.6 × 10-19 C from rest to a speed of 5.0 x 10° m/s?
How much potential difference is needed to stop an electron with a speed of 3x105 m/s ? (m=9,11x10-31 kg ; e=-1,6x10-19 C )
A +5.6 C charged particle (m=2.0 kg) is placed 42 cm from a -3.7C stationary charge. If the particle starts from rest, how fast will it moving after it has traveled 24.0 cm. What is the change in potential energy, and what is the speed of the particle?