How many electrons and alpha particles are in system
Question: A system consisting entirely of electrons and alpha particles has a net charge of 1.84*10^-15C and a net mass of 4.56*10^-23 kg. How many electrons and alpha particles are in this system?
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Lithium has two stable isotopes, 6Li and 7Li. If a sample is composed of 41% of the lighter isotope (with the balance being 7Li), calculate the average molar mass of the sample.
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Ultrasonic acoustic waves are diffracted by a pair of parallel slits 100mm apart. The zeros in the diffraction pattern are spaced at angular intervals of 8.3 degrees. Calculate the wavelength.
How do you calculate FUTA tax? What is the wage base limit? Does the employee or employer pay it? Please use an example in your explanation.
In the audit of Potomac Mills, the auditors wish to test the costs assigned to manufactured goods. During the year, the company has produced 2,000 production lots with a total recorded cost of $5.9 million.
Write down the Lorentz Transformation matrix for motion along the z direction with velocity v.
Hanson Company is constructing a building. Construction began on February 1 and was completed on December 31. Expenditures were $1,932,000 on March 1, $1,260,000.
What volume of 0.200 M K2Cr2O7 would be required to exactly react with 43.9 mL of 0.150 M KI in acidic solution? The products include Cr3+ ion and I2. What was reduced in the reaction and what was the reducing agent?
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