A positron has a mass number of _______ , a charge of _______ , and a mass equal to that of a(an) _______ .
(a) 0, 0, proton
(b) 0, 1+, proton
(c) 1, 2+, proton
(d) 0, 1+, electron
(e) 1, 2+, electron
Homework Answers
Positron is an anti-particle of electron. It has same mass as electron have i.e. 9.1 × 10-31 kg (considered negligible) and it is positively charged.
"A positron has a mass number of 0 , a charge of 1+ and a mass equal to that of an electron."
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20. A positron has a mass number of a charge of , and a mass equal...
An electron (rest mass me) of energy E makes a head-on collision with a positron (positron...
An electron (rest mass me) of
energy E makes a head-on collision with a positron (positron is
electron’s antiparticle, it has the same mass as electron, but
opposite charge) In collision the two particles annihilate each
other and are replaces by two photons (γ rays) of equal energy,
each traveling at equal angles θ with electron’s direction of
motion. Find 1. The energy of each photon. 2. The momentum p of
each photon. 3. The angle θ.
Problem 3. Electron-positron...
A positron has a mass of 9.11 x 10^-31 kg, and charge qp = +e =...
A positron has a mass of 9.11 x 10^-31 kg, and charge qp = +e = +1.60 x 10^-19 C. It is moving towards an α particle (qα = +2e, mα = 6.66 x 10^-27 kg) with a speed of 3.00 x 10^6 m/s. At this instant the separation between the two is 2.00 x 10^-10 m. Assume α particle stays at rest. (a) Calculate the speed of positron at 1.00 x 10^-10 m from α particle. (b) What is...
An electron-positron pair (positron is electron’s antiparticle, it has the same mass as electron, but opposite...
An electron-positron pair
(positron is electron’s antiparticle, it has the same mass as
electron, but opposite charge) can be produced what two photon are
collided. Two photons of frequency ω are collided head-on. What
will be the electron’s momentum? Electron’s rest mass is me
Problem 4. Electron-positron production An electron-positron pair (positron is electron's antiparticle, it has the same mass as electron, but opposite charge) can be produced what two photon are collided. Two photons of frequency w are collided...
2. Which particle has the same mass as an electron, but a positive electric charge A. Alpha particle B. Gamma photo...
2. Which particle has the same mass as an electron, but a positive electric charge A. Alpha particle B. Gamma photon AMMANT AHGIA C. Proton D. Positron AA
Question 1 What is the net electric charge (in units of e) of an atom of...
Question 1 What is the net electric charge (in units of e) of an atom of lead (Z82)? qlead exact number, no tolerance Attempts: 0 of 5 used Question 2 Suppose a lithium atom (Z units of e? 3) has been singly ionized. What is the net electric charge of the resulting lithium ion in lithium exact number, no tolerance Attempts: 0 of 5 used Question 3 Suppose a lead atom (Z = 82) has been doubly ionized. What is...
2. Electron-positron annihilation A positron with kinetic energy equal to twice its rest mass energy is incident on an...
2. Electron-positron annihilation A positron with kinetic energy equal to twice its rest mass energy is incident on an electron at rest The positron and electron annihilate creating two photons. One photon goes off at an angle of 30 with respect to the incident positron. Compute the energies of the two photons and find the direction in which the second photon travels
2. Electron-positron annihilation A positron with kinetic energy equal to twice its rest mass energy is incident on...
A positron (the electron's antiparticle) has mass 9.11 x 10-31kg and charge q0 = +e...
A positron (the electron's antiparticle) has mass 9.11 x 10-31kg and charge q0 = +e = +1.60 x 10-19 C. Suppose a positron moves directly away from an alpha particle, which has charge q = +2e. The alpha particle is stationary. When the positron is 1.00 x 10-10 m from the alpha particle, it is moving directly away from the alpha particle at 3.00 x 106 m/s. (a) What is the positron's speed when the particles are 2.00 x 10-10 m...
Problem 4. Electron-positron production An electron-positron pair (positron is electron’s antiparticle, it has the same mass...
Problem 4. Electron-positron production An electron-positron pair (positron is electron’s antiparticle, it has the same mass as electron, but opposite charge) can be produced what two photon are collided. Two photons of frequency ω are collided head-on. What will be the electron’s momentum? Electron’s rest mass is me.
(12 points) A positron (mass m and charge +e) moving tow con mass m and charge...
(12 points) A positron (mass m and charge +e) moving tow con mass m and charge +e) moving toward a stationary alpha particle (charge +2e). The minimum separation between the particles 15 Imum separation between the particles is d. The only force acting on the particles is the electrical force between them. speed of the positron, when it is at a distance 3d from the alpha particle? b. What happen to the potential energy of the system w to the...
The charge on an electron is e=−1.6×10−19 C. The charge on a proton is equal in...
The charge on an electron is e=−1.6×10−19 C. The charge on a proton is equal in magnitude, but positive. The electron's mass is 9.11×10−31 kg. A) In an atom the electric the proton and electron are seperated by 1.0×10−19m. What is the acceleration of an electron of an electron at that distance? B) What is the electric field magnitude due to the proton at the electron's location?
An electron (rest mass me) of
energy E makes a head-on collision with a positron (positron is
electron’s antiparticle, it has the same mass as electron, but
opposite charge) In collision the two particles annihilate each
other and are replaces by two photons (γ rays) of equal energy,
each traveling at equal angles θ with electron’s direction of
motion. Find 1. The energy of each photon. 2. The momentum p of
each photon. 3. The angle θ.
Problem 3. Electron-positron...
An electron-positron pair
(positron is electron’s antiparticle, it has the same mass as
electron, but opposite charge) can be produced what two photon are
collided. Two photons of frequency ω are collided head-on. What
will be the electron’s momentum? Electron’s rest mass is me
Problem 4. Electron-positron production An electron-positron pair (positron is electron's antiparticle, it has the same mass as electron, but opposite charge) can be produced what two photon are collided. Two photons of frequency w are collided...
2. Which particle has the same mass as an electron, but a positive electric charge A. Alpha particle B. Gamma photon AMMANT AHGIA C. Proton D. Positron AA
Question 1 What is the net electric charge (in units of e) of an atom of lead (Z82)? qlead exact number, no tolerance Attempts: 0 of 5 used Question 2 Suppose a lithium atom (Z units of e? 3) has been singly ionized. What is the net electric charge of the resulting lithium ion in lithium exact number, no tolerance Attempts: 0 of 5 used Question 3 Suppose a lead atom (Z = 82) has been doubly ionized. What is...
2. Electron-positron annihilation A positron with kinetic energy equal to twice its rest mass energy is incident on an electron at rest The positron and electron annihilate creating two photons. One photon goes off at an angle of 30 with respect to the incident positron. Compute the energies of the two photons and find the direction in which the second photon travels
2. Electron-positron annihilation A positron with kinetic energy equal to twice its rest mass energy is incident on...
(12 points) A positron (mass m and charge +e) moving tow con mass m and charge +e) moving toward a stationary alpha particle (charge +2e). The minimum separation between the particles 15 Imum separation between the particles is d. The only force acting on the particles is the electrical force between them. speed of the positron, when it is at a distance 3d from the alpha particle? b. What happen to the potential energy of the system w to the...
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