subject
Engineering, 26.11.2019 00:31 thedocgalloway

In 1945, the united states tested the world’s first atomic bomb in what was called the trinity test. following the test, images were published showing the evolution of the blast. a few years later, a british scientist, by the name of g. i. taylor, used dimensional analysis to predict the amount of energy released by the trinity explosion, which was still classified information at the time. he did so, just by analyzing the images alone. he assumed the blast radius, r, depended only on the evolution time, t, the energy released, e, and the density of air, rho. using the buckingham-pi theorem, find the dimensionless group, π1 = k, where k is a constant. assuming k = 1, find the energy released, in tons of tnt, if the radius of the blast wave at t = 0.025s is r = 140m. take the density of air to be rho = 1.2kg/m3. note, there are 4.184 × 109j per ton of tnt equivalent.

ansver
Answers: 1

Another question on Engineering

question
Engineering, 04.07.2019 18:10
You are making beer. the first step is filling the glass carboy with the liquid wort. the internal diameter of the carboy is 15 in., and you wish to fill it up to a depth of 2 ft. if your wort is drawn from the kettle using a siphon process that flows at 3 gpm, how long will it take to fill?
Answers: 1
question
Engineering, 04.07.2019 18:10
What are the two (02) benefits, which may result from a successful implementation of preventive maintenance (pm) program in an organization? (clo3)a)- lean manufacturing b)-overlapping responsibilities c)-the planner is not qualified d)-accurate contractor information e)-reduction in equipment redundancies f)-accurate stores information
Answers: 3
question
Engineering, 04.07.2019 18:20
Apiston-cylinder device contains 0.1 m3 of liquid water and 0.9 m3 of water vapor in equilibrium at 800 kpa. heat is transferred at constant pressure until the temperature of water reaches 350 °c. determine (a) the quality of water at the initial state (b) the work associated with this process, (c) the heat associated with this process.
Answers: 2
question
Engineering, 05.07.2019 10:10
What is the correct way to measure the overall length of a boat? measure from the tip of the bow to the highest point on the gunwale. measure from the tip of the bow in a straight line to the stern of the boat. measure from the tip of the bow in a straight line to the back seat. measure from port to starboard at the boat's widest point.
Answers: 1
You know the right answer?
In 1945, the united states tested the world’s first atomic bomb in what was called the trinity test....
Questions
question
Mathematics, 27.05.2021 01:50
question
Mathematics, 27.05.2021 01:50
question
Health, 27.05.2021 01:50
question
Mathematics, 27.05.2021 01:50
question
English, 27.05.2021 01:50
Questions on the website: 13722363