Assuming the Lawson criterion for the deuterium-tritium interaction,ητ ≥ 1014 s/cm3,what is the minimum plasma ion density at 10 11 K?

A) 10-3 s/cm3 B) 103 s/cm3 C) 1025 s/cm3 D) 1036 s/cm3 E) More information is needed. A) 10-3 s/cm3 B) 103 s/cm3 C) 1025 s/cm3 D) 1036 s/cm3 E) More information is needed. E

Calculate the energy released in the following fusion reaction where reactants are 6Li and a neutron;products are 4He and 3H.(atomic masses: 6Li,6.015 12;neutron,1.008 67;4He,4.002 60;3H,3.016 031;also 1 u = 931.5 MeV/c2)

A) 2.95 MeV B) 4.81 MeV C) 8.63 MeV D) 17.2 MeV A) 2.95 MeV B) 4.81 MeV C) 8.63 MeV D) 17.2 MeV

How much kinetic energy must a deuterium ion (charge = 1.6 × 10-19 C)have to approach within 1.7 × 10−14 m of another deuterium ion? (ke = 8.99 × 109 N·m2/C2 and 1 keV = 1.6 × 10-16 J)

A) 50 keV B) 110 keV C) 10 keV D) 80 keV E) 140 keV A) 50 keV B) 110 keV C) 10 keV D) 80 keV E) 140 keV

In a fusion reactor,the high temperature of the order of 108 K is required in order that what condition is met?

A) melt down the hydrogen fuel B) strip the hydrogen atoms of their electrons C) break the protons into their elementary particle sub-parts D) overcome Coulomb repelling forces between protons A) melt down the hydrogen fuel B) strip the hydrogen atoms of their electrons C) break the protons into their elementary particle sub-parts D) overcome Coulomb repelling forces between protons

The following reaction can occur by the strong interaction: π0 + n → K+ + Σ-.If the quark composition of the n is (udd),the π 0 is And the composition of the K+ is ,what is the quark composition of the Σ-?

A) uds B) dds C) sss D) A) uds B) dds C) sss D)

Exam 30: Nuclear Energy and Elementary Particles

If a self-sustained controlled fusion reaction is to operate,a condition which must be met is that the fuel material be subjected to which of the following condition(s)?

Free

(Multiple Choice)

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Question 1

Correct Answer:

Verified

Of the following mesons,which is its own antiparticle?

Free

(Multiple Choice)

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Question 2

Correct Answer:

Verified

Assuming the Lawson criterion for the deuterium-tritium interaction,ητ ≥ 10¹⁴ s/cm³,what is the minimum plasma ion density at 10 ¹¹ K?

Free

(Multiple Choice)

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Question 3

Correct Answer:

Verified

Which of the following will not influence the rate at which nuclear reactions will occur in a nuclear power plant where the fuel elements are a mixture of ²³⁵U and ²³⁸U?

(Multiple Choice)

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Question 4

Calculate the energy released in the following fusion reaction where reactants are ⁶Li and a neutron;products are ⁴He and ³H.(atomic masses: ⁶Li,6.015 12;neutron,1.008 67;⁴He,4.002 60;³H,3.016 031;also 1 u = 931.5 MeV/c²)

(Multiple Choice)

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Question 5

Calculate the energy (in kW⋅h)given off if five kg of plutonium-239 undergoes complete fission.The energy released per fission is 200 MeV.(1 MeV = 1.6 × 10−¹³ J)

(Multiple Choice)

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Question 6

A proton and antiproton each with total energy 300 GeV collide head-on.What is the total energy (particles + energy)released?

(Multiple Choice)

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Question 7

In a fission reaction,a ²³⁵U nucleus captures a neutron.This results in the creation of the products ¹⁴¹Ba and ⁹²Kr along with how many neutrons?

(Multiple Choice)

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Question 8

The cosmic background radiation appears compatible with a blackbody source at what temperature?

(Multiple Choice)

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Question 9

How much kinetic energy must a deuterium ion (charge = 1.6 × 10^-19 C)have to approach within 1.7 × 10−¹⁴ m of another deuterium ion? (k_e = 8.99 × 10⁹ N·m²/C² and 1 keV = 1.6 × 10^-16 J)

(Multiple Choice)

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Question 10

Which of the following particles has not been observed experimentally?

(Multiple Choice)

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Question 11

Mesons are always composed of

(Multiple Choice)

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Question 12

Which particle was the last to be discovered?

(Multiple Choice)

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Question 13

Which force can act over distances comparable to the distance between planets?

(Multiple Choice)

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Question 14

The virtual exchange of photons can produce

(Multiple Choice)

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Question 15

In a fusion reactor,the high temperature of the order of 10⁸ K is required in order that what condition is met?

(Multiple Choice)

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Question 16

When uranium fissions into two medium-mass nuclei,the product nuclei tend to have an excess of neutrons when compared to stable nuclei.What type of radioactive decay would one expect from these product nuclei?

(Multiple Choice)

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Question 17

If protons have a half-life of 10³¹ years,what fraction of the original protons have decayed during the 10¹ year existence of the universe?

(Multiple Choice)

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Question 18

Experimentally,strange particles can be produced in abundance,but they decay relatively slowly.This occurs because strangeness

(Multiple Choice)

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Question 19

The following reaction can occur by the strong interaction: π⁰ + n → K⁺ + Σ^-.If the quark composition of the n is (udd),the π ⁰ is And the composition of the K⁺ is ,what is the quark composition of the Σ^-?

(Multiple Choice)

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Question 20

Showing 1 - 20 of 90

Exam 30: Nuclear Energy and Elementary Particles

If a self-sustained controlled fusion reaction is to operate,a condition which must be met is that the fuel material be subjected to which of the following condition(s)?

Of the following mesons,which is its own antiparticle?

Assuming the Lawson criterion for the deuterium-tritium interaction,ητ ≥ 1014 s/cm3,what is the minimum plasma ion density at 10 11 K?

Which of the following will not influence the rate at which nuclear reactions will occur in a nuclear power plant where the fuel elements are a mixture of 235U and 238U?

Calculate the energy released in the following fusion reaction where reactants are 6Li and a neutron;products are 4He and 3H.(atomic masses: 6Li,6.015 12;neutron,1.008 67;4He,4.002 60;3H,3.016 031;also 1 u = 931.5 MeV/c2)

Calculate the energy (in kW⋅h)given off if five kg of plutonium-239 undergoes complete fission.The energy released per fission is 200 MeV.(1 MeV = 1.6 × 10−13 J)

A proton and antiproton each with total energy 300 GeV collide head-on.What is the total energy (particles + energy)released?

In a fission reaction,a 235U nucleus captures a neutron.This results in the creation of the products 141Ba and 92Kr along with how many neutrons?

The cosmic background radiation appears compatible with a blackbody source at what temperature?

How much kinetic energy must a deuterium ion (charge = 1.6 × 10-19 C)have to approach within 1.7 × 10−14 m of another deuterium ion? (ke = 8.99 × 109 N·m2/C2 and 1 keV = 1.6 × 10-16 J)

Which of the following particles has not been observed experimentally?

Mesons are always composed of

Which particle was the last to be discovered?

Which force can act over distances comparable to the distance between planets?

The virtual exchange of photons can produce

In a fusion reactor,the high temperature of the order of 108 K is required in order that what condition is met?

When uranium fissions into two medium-mass nuclei,the product nuclei tend to have an excess of neutrons when compared to stable nuclei.What type of radioactive decay would one expect from these product nuclei?

If protons have a half-life of 1031 years,what fraction of the original protons have decayed during the 101 year existence of the universe?

Experimentally,strange particles can be produced in abundance,but they decay relatively slowly.This occurs because strangeness

The following reaction can occur by the strong interaction: π0 + n → K+ + Σ-.If the quark composition of the n is (udd),the π 0 is And the composition of the K+ is ,what is the quark composition of the Σ-?

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Assuming the Lawson criterion for the deuterium-tritium interaction,ητ ≥ 10¹⁴ s/cm³,what is the minimum plasma ion density at 10 ¹¹ K?

Which of the following will not influence the rate at which nuclear reactions will occur in a nuclear power plant where the fuel elements are a mixture of ²³⁵U and ²³⁸U?

Calculate the energy released in the following fusion reaction where reactants are ⁶Li and a neutron;products are ⁴He and ³H.(atomic masses: ⁶Li,6.015 12;neutron,1.008 67;⁴He,4.002 60;³H,3.016 031;also 1 u = 931.5 MeV/c²)

Calculate the energy (in kW⋅h)given off if five kg of plutonium-239 undergoes complete fission.The energy released per fission is 200 MeV.(1 MeV = 1.6 × 10−¹³ J)

In a fission reaction,a ²³⁵U nucleus captures a neutron.This results in the creation of the products ¹⁴¹Ba and ⁹²Kr along with how many neutrons?

How much kinetic energy must a deuterium ion (charge = 1.6 × 10^-19 C)have to approach within 1.7 × 10−¹⁴ m of another deuterium ion? (k_e = 8.99 × 10⁹ N·m²/C² and 1 keV = 1.6 × 10^-16 J)

In a fusion reactor,the high temperature of the order of 10⁸ K is required in order that what condition is met?

If protons have a half-life of 10³¹ years,what fraction of the original protons have decayed during the 10¹ year existence of the universe?

The following reaction can occur by the strong interaction: π⁰ + n → K⁺ + Σ^-.If the quark composition of the n is (udd),the π ⁰ is And the composition of the K⁺ is ,what is the quark composition of the Σ^-?