Electrons are accelerated to high speeds by a two-stage machine. The first stage accelerates the electrons from rest to 0.99 c, and the second stage accelerates the electrons from 0.99 c to 0.999 c. By how much does each stage increase the kinetic energy of an electron?
Electrons are accelerated to high speeds by a two-stage machine. The first stage accelerates the electrons...
Electrons are accelerated to high speeds by a two-stage machine. The first stage accelerates the electrons from rest to v = 0.99c. The second stage accelerates the electrons from 0.99c to 0.9997c. (a) How much energy does the first stage add to the electrons? MeV (b) How much energy does the second stage add in increasing the velocity by only 0.98%? MeV
Electrons are accelerated from rest in an electron gun. They move through a potential difference of 15.0 kV. Determine the resulting kinetic energy of each electron. 11.0 kJ 2.40 × 10-15 J 1.45 × 10-23 J 1.76 × 10-15 J
Text problem 2.8. Assume that the electrons in a transmission electron microscope are accelerated through a potential of 80,000 volts. Determine (a) The electron velocity given by this potential by assuming that the energy the electrons gain falling through the potential equals the gain in their kinetic energy. (b) The effective wavelength of the electrons. (c) The Bragg angle, if the electrons undergo a first-order reflection from a {100} plane of a bcc vanadium crystal. Take the lattice parameter of...
1. A rocket accelerates upward from rest during the first stage with a constant acceleration of a1 = 95.0 m/s2 for t1 = 30.0 s. The first stage then detaches and the second stage fires, providing a constant acceleration of a2 = 50.0 m/s2 for t2 = 60.0 s. (a) What is the total distance traveled by the rocket during both stages? (b) What is the speed of the rocket after the second stage burn?
An object starts at rest and accelerates to a high speed. Which of the following properties does not change? a- mass b-kinetic energy c- length d- electric charge
Sparks occur when the electric field in air exceeds 3 x 106 N/C. This is because free electrons normally present in air are accelerated to such high speeds that their kinetic energy will overcome the potential energy holding other electrons to atoms. When those electrons rearrange themselves after such a collision, a flash of light is emitted. Let us suppose that the work done on an electron must give it an energy of 3 x 10-19 J to cause this ionization. How...
2. A cyclotron is a device used to accelerate charged particles to high speeds. It consists of two hollow containers -called dees because of their shape facing each other and separated by a small gap. They are immersed in a uniform magnetic field, B, and are attached to a source of alternating voltage. A charged particle is projected from the center of the cyclotron into Dee #1, and the magnetic force causes it to turn in a cirele. When it...
Calculate the final speed (in m/s) of an alpha particle (two protons, two electrons) accelerated from rest through a potential difference of 98.4 V. (Note: thanks to binding energy, the actual mass of an alpha particle is 6.645
5.24 Two cars are moving. The first car has twice the mass of the second car but only half as much kinetic energy. When both cars increase their speed by 5.00 m/s, they then have the same kinetic the original speeds of the two cars
A linear particle accelerator using beta particles collides electrons with their anti-matter counterparts, positrons. The accelerated electron hits the stationary position with a velocity of 90 x 106 m/s, causing the two particles to annihilate. If two gamma photons are created as a result, calculate the energy of each of these two photons, giving your answer in MeV (mega electron volts), accurate to 1 decimal place. Take the mass of the electron to be 5.486 x 10-4 u, or 9.109...