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Particle Physics
Page 6
Questions (396)
An atomic nucleus of radon initially moving at 530 m/s emits an alpha particle in the direction of its velocity, and the new
3 answers
asked by
Anonymous
644 views
A neutron, a proton, and an electron are initially at the same distance from a relatively large stationary nucleus moving at a
1 answer
asked by
Karen
624 views
Assuming that the smallest measurable wavelength in an experiment is 0.330 fm(femtometers), what is the maximum mass of an
2 answers
asked by
Anonymous
629 views
A radioactive nucleus is at rest when it spontaneously decays by emitting an electron and neutrino (as shown in the figure below
1 answer
asked by
Tom
621 views
1. When material decays, it emits a particle. An experiment similar to the J.J. Thomson experiment is performed to determine the
2 answers
asked by
sam
616 views
1.How does the mass of a nucleon compare with the mass of an electron?
2.Distinguish between atomic number and atomic mass
3 answers
asked by
Will
617 views
an alpha particle of mass m= 6.6 x 10^-27 kg has a speed of .81c, where the speed of light is c= 3 x 10^8 m/s. The alpha
3 answers
asked by
NADIA
596 views
The particle wavelength of your lecturer in 3.091 on his way from the office to 10-250 (200 yards, 1 yard = 0.9144 m) has been
48 answers
asked by
Peter
596 views
Use the diagram of a particle accelerator to answer the question.
What characteristics do the particles need to have in order to
1 answer
asked anonymously
56 views
Match the particle to its description. Column A 1. Relatively large particle: Relatively large particle 2. This particle cannot
1 answer
asked by
cyan
63 views
An electron strikes the back of a TV screen at 1/10 the speed of light.
What is the speed of the electron? What is the momentum
3 answers
asked by
Dana
613 views
A gamma-ray photon produces an electron-positron pair, each with a kinetic energy of 275keV .
What was the energy of the photon?
2 answers
asked by
Sheila
619 views
Suppose that a PES experiment is performed in which mercury vapor is irradiated with ultraviolet light of wavelength 58.4 nm.
2 answers
asked by
K.
567 views
A pion has rest energy 135MeV. It decays into two gamma rays that travel at the speed of light. A pion
moving through the lab
2 answers
asked by
mike
546 views
Why can neutrinos travel immense distances through matter whereas other elementary
particles cannot?
2 answers
asked by
Sheryl
545 views
A particle has a velocity that is 92% of the speed of light. If the wavelength of the particle is 1.55×10-15 m, calculate the
2 answers
asked by
Anonymous
543 views
A cosmic-ray proton in interstellar space has an energy of 19.5 MeV and executes a circular orbit having a radius equal to that
2 answers
asked by
Anonymous
553 views
why do exteremely hot particles emit certaion amount of light ?
2 answers
asked by
karun
508 views
for A, Z, and X I'm typing it in the form A,Z,X (or X as a particle) since I obviously can't do sub or superscript...
1,1,H +
9 answers
asked by
Trixie
540 views
A pion has rest energy 135MeV. It decays into two gamma rays that travel at the speed of light. A pion
moving through the lab
2 answers
asked by
Pardis
531 views
An alpha particle(the nucleus of a helium atom) has a mass of 6.64*10^-27kg and a charge of +2e. What are the magnitude and
2 answers
asked by
Tolar
537 views
describe what happens when a nucleus is stabilized by emitting positrons
2 answers
asked by
<3
515 views
One could easily determine a single bb's mass by simply weighing it or by weighing 100 BBs and dividing the mass by 100. Why
2 answers
asked by
Rebekah
550 views
How the asymmetry between matter
and anti-matter in our Universe might be generated. Why might neutrinos be a key player in
3 answers
asked by
qwerty
529 views
Getting my head twisted around by the wording of these two questions, any help would be appreciated. My answers/ideas are below
2 answers
asked by
Anon
531 views
A cyclotron produces a 100-μA beam of 15-MeV deuterons. If the cyclotron
were 100% efficient in converting electrical energy
2 answers
asked by
Nam-kung hoon
499 views
Calculate the wavelength of a proton with energy 2.45 eV.
2 answers
asked by
adex
504 views
The Stanford Linear Accelerator can accelerate electrons to 50GeV (50x10^9eV).
What is the minimum wavelength of photon it can
2 answers
asked by
Paul
516 views
An alpha-particle collides with an oxygen nucleus which is initially at rest. The alpha-particle is scattered at an angle of
2 answers
asked by
PHysics
505 views
the half-life of a positron is very short. it reacts with an electron, and the masses of both are converted to two gamma-ray
2 answers
asked by
yannick lungu
517 views
You plan to pass alpha particles through a field that contains a consistent type of particle. Which configuration will result in
1 answer
asked by
Kopopolo
43 views
powder toy what do protons create
1 answer
asked anonymously
13 views
neutron create what
1 answer
asked anonymously
13 views
do only protons create everything
1 answer
asked anonymously
18 views
Why can neutrinos travel immense distances through matter whereas other elementary particles cannot?
2 answers
asked by
Sheryl
503 views
ow does the mass of a nucleon compare with the mass of an electron?
3 answers
asked by
Adam
510 views
a particle which has zero rest mass and non zero energy and momentum must travel with a speed?
1 answer
asked by
Samm
501 views
Particles called mesons are produced by accelerator beams. if these particles travel at 2.70* 10^8 m/s and live 2.60*10^-8 s
2 answers
asked by
JAY
483 views
Which of the following characteristics x-ray photon emission?
(a)electron capture (b)beta-decay (c)positron emmision
2 answers
asked by
Olushola
505 views
Muons are elementary particles that have a very short lifetime of about two millionth of a second (when at rest). They can be
2 answers
asked by
roxy
510 views
A particle wavelength (λp) of a proton is 10-12m.
What is the velocity of this proton [m/s]? To achieved the velocity that you
7 answers
asked by
schoolgirl
531 views
J.J Thompson discovered that cathode rays are:
A)emitted from the nucleus of an atom b)a stream of charged atoms c)a result of
3 answers
asked by
Ebony Fraser
498 views
A gamma ray with 700KeV energy is Compton-Scattered from an electron. Find the energy of the photon scattered at 110 degrees,
2 answers
asked by
Sarah
518 views
Question: particle J with zero initial mass and X energy accelerates
from a static start to 'C' (light speed) in a time frame of
1 answer
asked by
Dan
531 views
What would the energy be if an alpha particle's mass disappeared and was completely converted to energy?
2 answers
asked by
Anonymous
481 views
Which of the following statements is incorrect?
a. Baryons consist of three quarks. b. Leptons do not possess any quarks. c. Only
1 answer
asked by
koeit
499 views
Neutrons are more effective than protons or alpha particles for bombarding atomic nuclei. Why?
2 answers
asked by
Christina
483 views
Muons are elementary particles that have a very short lifetime of about two millionth of a second (when at rest). They can be
2 answers
asked by
john
471 views
How does the mass of a nucleon compare with the mass of an electron?
2 answers
asked by
Lauren
488 views
A certain muon detector counts 600 muouns/h at an altitude of 1900m and 380/h at sea level. Given that the muon half-life at
2 answers
asked by
htvowser
473 views
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Parent Categories (6)
Electromagnetism
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Physical Science
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