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A glow worm of mass 5.0 g emits red light (650nm) with a power of 0.10W entirely the backward direction. To what speed will it have accelerated after 10y if released into free space and assumed to live? Energy emitted = P(W).At(s). Assume the conservation of linear momentum, which means that the loss of a photon imparts an equivalent momentum in the opposite direction. The total momentum imparted to the glow-worm: p = Npphoton where N= Energy emitted Energyphoton X=650nm p = mv Pylowworm = N Pphoton Total Energy = energy/photon = (E=hr) = hc 5g=00005kg (mv) glowworm total energy /photon N = # of photons = Pphoton = momentum/phoy ! = PAT At = 10 yrs => At=see Pphoton = 1/2

A glow worm of mass 5.0 g emits red light (650nm) with a power of 0.10W entirely the backward direction. To what speed will it have accelerated after 10y if released into free space and assumed to live? Energy emitted = P(W).At(s). Assume the conservation of linear momentum, which means that the loss of a photon imparts an equivalent momentum in the opposite direction. The total momentum imparted to the glow-worm: p = Npphoton where N= Energy emitted Energyphoton X=650nm p = mv Pylowworm = N Pphoton Total Energy = energy/photon = (E=hr) = hc 5g=00005kg (mv) glowworm total energy /photon N = # of photons = Pphoton = momentum/phoy ! = PAT At = 10 yrs => At=see Pphoton = 1/2

Physical Chemistry
Physical Chemistry
2nd Edition
ISBN:9781133958437
Author:Ball, David W. (david Warren), BAER, Tomas
Publisher:Ball, David W. (david Warren), BAER, Tomas
Chapter11: Quantum Mechanics: Model Systems And The Hydrogen Atom
Section: Chapter Questions
Problem 11.64E
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A glow worm of mass 5.0 g emits red light (650nm) with a power of 0.10W entirely in the backward direction. To what speed will it have accelerated after 10y if released into free space and assumed to live? Energy emitted = P(W)-At(s). Assume the conservation of linear momentum, which means that the loss of a photon imparts an equivalent momentum in the opposite direction. total energy The total momentum imparted to the glow-worm: p = Npphoton where energy/photon x= 650nm N = Energy emitted p = mv Energyphoton V= = { PglowwormN Pphoton N = # of photons = Pphoton = momentum/photon 5g=00005kg = (mv) glowworm At =10yrs => At-see Total Energy = Pat energy/photon = (E=hr) = hec Pphoton = 12 숫
Transcribed Image Text:A glow worm of mass 5.0 g emits red light (650nm) with a power of 0.10W entirely in the backward direction. To what speed will it have accelerated after 10y if released into free space and assumed to live? Energy emitted = P(W)-At(s). Assume the conservation of linear momentum, which means that the loss of a photon imparts an equivalent momentum in the opposite direction. total energy The total momentum imparted to the glow-worm: p = Npphoton where energy/photon x= 650nm N = Energy emitted p = mv Energyphoton V= = { PglowwormN Pphoton N = # of photons = Pphoton = momentum/photon 5g=00005kg = (mv) glowworm At =10yrs => At-see Total Energy = Pat energy/photon = (E=hr) = hec Pphoton = 12 숫
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