Reference no: EM13952617
1.) It has been estimated that the Earth contains 1.0 x 10^9 tons of natural uranium that can be mined economically. If all the world's energy needs (7.0 x 10^12 J/s) were supplied by 235(U) fission, how long would this supply last? Assume that the average energy released in a fission event is 208 MeV. (Hint: 235/92(U) has a percent abundance of 0.720)
2.) Two photons are produced when a proton and an antiproton annihilate each other. What is the minimum frequency and corresponding wavelength of each photon?
3.) When a high-energy proton or pion traveling near the speed of light collides with a nucleus, it travels an average distance of 2.8 x 10^-15 m before interacting with another particle. From this information, estimate the time for the strong interaction to occur.
4.) A K0 particle at rest decays into a pi;+ and a pi;-. What will be the speed of each of the pions? The mass of the K0 particle is 497.7 MeV/c2 and the mass of each pion is 139.6 MeV/c2.
5.) The atomic bomb dropped on Hiroshima on August 6, 1945, released 5 x 10^13 J of energy equivalent to that from 12,000 tons of TNT. (Assume that a typical 235U fission releases approximately 200 MeV of energy.)
(a) Estimate the number of 235/92(U) nuclei fissioned.
(b) Estimate the mass of this amount of 235/92(U).
6.) (a) Calculate how much energy would be released by the fusion of the deuterons in 1.0 gal of water. Note that 1 out of every 6500 hydrogen atoms is a deuteron.
(b) The average energy consumption rate of a person living in the United States is about 1.0 104 J/s (an average power of 10 kW). At this rate, how long would the energy needs of one person be supplied by the fusion of the deuterons in 1.0 gal of water? Assume that the energy released per deuteron is 1.64 MeV.
7.) Calculate the mass of 235 U required to provide the total energy requirements of a nuclear submarine during a 101 day patrol, assuming a constant power demand of 150,000 kW, a conversion efficiency of 15%, and an average energy released per fission of 208 MeV.
|
What happens g, and hence weight, and hence weight density
: A cylinder container has a couple of holes punched into the bottom of it and the water is spurting out the holes due to the water pressure. You drop the water filled cylinder and as it is free falling the water no longer spurts out the holes. What..
|
|
Design and verify the equivalence function
: Draw and label a diagram showing the connections among the exclusive-NOR gates and the AND gate to implement the equivalence logic.
|
|
Hume argues that moral judgement is not derived
: Hume argues that moral judgement is not derived from reason alone. Explain thisargument using a real and original example of moral (or immoral) action. Doesthis mean that reason is not important for moral judgement according to Hume? Explain your ans..
|
|
Knowledge of the concepts of principal
: Write a well-constructed factual scenario which demonstrates your working knowledge of the concepts of principal, accomplice, accessory, and accessory after the fact.
|
|
What is the minimum frequency and corresponding wavelength
: Two photons are produced when a proton and an antiproton annihilate each other. What is the minimum frequency and corresponding wavelength of each photon?
|
|
Common law rule-constitutional provision
: 1. What legal question must the court decide, and what is the common law rule, constitutional provision or statute that the question will turn on?
|
|
Executive order on critical information infrastructure
: Read the Whitehouse Executive Order on Critical Information Infrastructure (2001) and identify the key areas addressed. After reviewing the Executive Order of October 16, 2001, what areas do you feel are most vital to critical infrastructure prote..
|
|
Counter-terrorism and weapons of mass destruction
: Compare and contrast the counter-terrorism and weapons of mass destruction capabilities of a large municipal police agency with that of your local jurisdiction. If your local jurisdiction is a large agency, select a smaller agency with which you a..
|
|
Brainstorming generate lots of ideas
: Brainstorming: generate lots of ideas (# to be specified) and wacky ideas for a given challenge utilizing headlining (= brief, descriptive title for the idea shown above or below the sketch); and sketching (=informal, pictorial representation of th..
|