If the speed of a particle is doubled, what happens to itskinetic energy? (a) It becomes four times larger. (b) Itbecomes two times larger. (c) It becomes √ 2 times larger. (d)It is unchanged. (e) It becomes half as large.

Q: An electron moves through the lab at a speed such that γ = 1.5. The electron’s kinetic energy isA.…

A:

Q: What is γ for a proton having a mass energy of 938.3 MeV accelerated through an effective potential…

A:

Q: an electron is accelerated through a potential difference of 1.5 MV and hence gains 1.5 MeV of…

A: kinetic energy gained due to potential difference (U) = 1.5 MeV Initial speed (u) = 0 msmass of…

Q: What is the speed of an electron with kinetic energy (a) 750 eV, and (b) 3.2 keV?

A:

Q: Why should the particle that carries positive charge be almost 2000 times as massive as the one…

A: The proton carries the positive charge and the electron carries the negative charge. The body have…

Q: A K0 particle at rest decays into a π+ and a π−. The mass of the K0 is 497.7 MeV/c2 and the mass of…

A: The expression for the speed of each the pion from energy equation,

Q: How efficiency of cosmic radiation will be changed if cells/organism will be frozen at minus 80C for…

A: cosmic ray, a high-speed particle—either an atomic nucleus or an electron—that travels through…

Q: otons having a kinetic energy of 3.10 Mev are moving in the positive x-c direction, out of the plane…

A: GivenKinetic energy of proton, K.E=3.10 MeVMagnetic field , B=0.0470 T

Q: The mass of an electron is 9.109 381 88 * 10-31 kg.To eight significant figures, find the following…

A: The kinetic energy of a relativistic particle,

Q: Does the equation E= mc2 conflict with the conservationof energy principle? Explain.

A: Conservation of energy principle states that energy neither be created nor destroyed (by us),…

Q: The speed of a proton was increased from 1x10^8 m/s to 2x10^8 m/s. If the rest energy of proton is…

A: The solution is given below

Q: Take the ratio of relativistic rest energy, E = γmc 2, to relativistic momentum, p = γmu , and show…

A: The relativistic rest energy is, E=γmc2p=γmc andEp=γmc2γmc=c

Q: Is this situation possible? If not, why not? A stationary particle fragments into two particles. One…

A: This situation is not possible.

Q: If the mean proper life-time of particles is 2.2 x 106 s, the average distance would they travel in…

A:

Q: If a massless particle has momentum 1,368 MeV/c, calculate its energy in MeV.

A: The given moment in MeV/c can be obtained in MeV as

Q: A proton and anti-proton with rest energy 8f, 3.0 108 What is the relative speed of positron and…

A: Given: E0=931 MEVC2V=0.995×cc=3×108 ms

Q: What speed must a particle attain before its kinetic energy is double the value predicted by the…

A:

Q: An important fusion reaction in both hydrogen bombs and controlled-fusion reactors is the “DT…

A: The DT reaction is given by

Q: If a particle has a decay time of 2ms, what is its decay time if it is moving at 1.5x10^8 m/s?

A: The given values are,

Q: James is standing on top of a hill.How tall is the hill if James has a mass of 86 ilograms and…

A:

Q: Alpha particles, which may be viewed as Helium nuclei, have a mass of 6.64 x 10-27 kg. If an alpha…

A: Given K=1.00 MeV=1.60×10-13 J m=6.64×10-27 kg

Q: The total energy of a proton passing through a laboratory apparatus is 10.611 nJ.What is its speed…

A: The expression for the speed of the proton,

Q: A beam of particles travels by at 2.0*10^8. At this speed you measure them to live 5.00* 10^6  sec,…

A:

Q: What is the rest energy (in joules) of a subatomic particle whose (rest) mass is 6.7×10−31 kg?  How…

A: Rest mass m0=6.7×10^-31 kg  Rest mass energy E=m0C2  C=3×10^8 m/s

Q: A negative muon traveling at 53% the speed of lightcollides head on with a positive muon traveling…

A: Given: The negative muon is traveling at 53% the speed of light. The positive muon is traveling at…

Q: What speed must a particle attain before its kinetic energy is double the value predicted by the…

A: The relativistic kinetic energy of the particle is

Q: The conservation of energy Hv=2ymc*c.A O H=2KT.BO H=EKT.CO None of these.DO

A:

Q: If the rest energies of a positive omega particle and a negative sigma particle are 1672.5 and…

A:

Q: If the speed of a particle triples, by what factor does itskinetic energy increase?

A: The expression for find kinetic energy is KE=12mv2

Q: A proton is traveling in an accelerator with a speed of 1.0 x108 m/sBy what factor does the proton’s…

A: From the question it is given that Velocity of proton: v =1.0×108 m/s  Kinetic energy of proton is…

Q: Six identical particles have a speed 2m/s except for the last ( which is the seventh) particle which…

A:

Q: A mass of 1g is seperated from another mass of 1g by a distance of 1cm. How many g wt of force…

A: The equation for the force between the masses is given by

Q: Since there is an upper limit on the speed of a particle, does it follow that there is also an upper…

A: Kinetic energy and momentum of the panicle is depending on the mass of the particle. Mass has no…

Q: The energy of a photon, whose momentum is 10 MeV/c, where c is the speed of light, is given by:  A)…

A: From the question it is given that momentum of photon: p = 10 MeVc Energy of a relativistic particle…

Q: What is the kinetic energy in MeV of a π -meson that lives 1.40×10−16 s as measured in the…

A: Given Data: The decay time of meson in rest frame is, t0=0.840×10-16 s The decay time in the rest…

Q: Suppose a W − created in a bubble chamber lives for 5.00×10−25 s. What distance does it move in this…

A:

Q: How fast must an electron move so that its total energy is 10% more than its rest mass energy?

A: Scenario: An electron is moving with some speed.

Q: If the rest energies of a proton and a neutron (the two constituents of nuclei) are 938.3 and 939.6…

A: The Lorentz factor is given by, γ=11uc2

Relativistic Energy and Momentum

According to classical physics, time flow is the same for every observer. But according to einstein's theory, time flow is different for different observers. The idea that time flow is not the same for all may sound strange because we may not experience this effect in everyday life. This effect is only observed when an object moves with some velocity comparable to the velocity of light. This velocity is termed relativistic velocity.