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For ultrarelativistic particles such as photons or high-energy electrons, the relation between energy and momentum is not E = p2/2m but rather E = pc. (This formula is valid for massless particles, and also for massive particles in the limit E » mc2.) (a) Find a formula for the allowed energies of an ultrarelativistic particle confined to a one-dimensional box of length L.
(b) Estimate the minimum energy of an electron confined inside a box of width 10-15 m. It was once thought that atomic nuclei might contain electrons; explain why this would be very unlikely.
(c) A nucleon (proton or neutron) can be thought of as a bound state of three quarks that are approximately massless, held together by a very strong force that effectively confines them inside a box of width 10-15 m. Estimate the minimum energy of three such particles (assuming all three of them to be in the lowest-energy state), and divide by c2 to obtain an estimate of the nucleon mass.
What is the molarity of a calcium hydroxide solution if a 25.0 mL sample is exaclty neutralized by 42.5 mL of 0.0750 M nitric acid?
A Standard Reference Material is certified to contain 94.6 ppm of an organic contaminant in soil. Your analysis gives values of 98.6, 98.4, 97.2, 94.6, and 96.2 ppm.
Calculate the heat lost by the hot water, Calculate the heat gained by the cold water, Calculate the calorimeter constant, using the delta T of the cold water.
Write balanced complete ionic equation and a balanced net ionic equation for the following: Express your answer as a chemical equation. Identify all of the phases in your answer.
Given that blood exert the same osmotic pressure as a o.15 M NaCl solution, which of the following could be the contents of the seconds beaker? 0.008 NaCl or 0.15 or 0.68
Can you name me 2-3 scientific problems in chemistry and their continuous mathematical models
a current of 0.500 a is passed through an electrolytic cell containing molten mgcl2 for 2.00 h. calculate the quantity
Write an equation for the reaction of magnesium oxide with sodium chloride to produce magnesium chloride and sodium oxide. 1)show formulas of the reactants 2)show formulas of the products
Is there any simplar way to show me how to balance out eqautions the right way
Question- What information would your provide to an organization or your employer on why database systems should be used
Hydrogen phosphate buffer, Buffer solutions have the unique ability to resist changes in PH when an acid or base is added to them. One important buffer system that helps to maintain blood pH at a constant value of 7.4 is the hydrogen phosphate buf..
what is the pH of the benzoic acid solution prior to adding sodium benzoate? B. how many grams of sodium benzoate should be added to prepare the buffer? neglect the small volume change that occurs when the sodium benzoate is added.
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