PHYSICS F/SCI.+ENGR.,CHAPTERS 1-37
5th Edition
ISBN: 9780134378060
Author: GIANCOLI
Publisher: RENT PEARS
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Chapter 43, Problem 58GP
(a)
To determine
The unified distance of
(b)
To determine
The temperature corresponding to
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Chapter 43 Solutions
PHYSICS F/SCI.+ENGR.,CHAPTERS 1-37
Ch. 43 - Prob. 1QCh. 43 - If a proton is moving at very high speed, so that...Ch. 43 - Prob. 3QCh. 43 - Prob. 4QCh. 43 - Prob. 5QCh. 43 - Prob. 6QCh. 43 - Prob. 7QCh. 43 - Prob. 8QCh. 43 - Prob. 9QCh. 43 - Prob. 10Q
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- Suppose you are designing a proton decay experiment and you can detect 50 percent of the proton decays in a tank of water. (a) How many kilograms of water would you need to see one decay per month, assuming a lifetime of 1031 y ? (b) How many cubic meters of water is this? (c) If the actual lifetime is 1033 y , how long would you have to wait on an average to see a single proton decay?arrow_forward3. (a) Verify that the minimum energy a photon must have to create an electron-positron pair in the presence of a stationary nucleus of mass M is 2mc2(1 + m/M), where m is the electron rest mass. (b) Find the minimum energy needed for pair production in the presence of a proton.arrow_forwardMost of the particles known to physicists are unstable. For example, the lifetime of the neutral pion,π0, is about 8.4x10-17 s. Its mass is 135.0 MeV/c2. a) What is the energy width of the π0 in its ground state? b) What is the relative uncertainty ∆m/m of the pion’s mass?arrow_forward
- (a) What do you understand by ‘time Dilation’ On the basis of LorentzTransformations, discuss the variation of time with velocity according to thespecial theory of relativity. Explain why a moving clock appears to run slow?(b) Using Heisenberg uncertainty principle, show that electron cannot exist inside the nucleus.arrow_forwardAssume a flat Friedmann-Robertson-Walker universe, and that the density parameters for matter,radiation, and the cosmological constant are given today by Ωm,0 = 0.4, Ωrad,0 = 0.01, and ΩΛ,0 =0.59, respectively.a) Calculate the redshifts for matter-radiation and matter-dark energy equality. b) State what effect the lower ratio of ΩΛ,0/Ωm,0, compared to the standard Λ-CDM cosmology,has on structure formation.arrow_forwardWhat mechanism can simultaneously solve both the flatness and horizon problems in cosmology?arrow_forward
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