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Consider a transverse wave travelling along a string with speed v, wave number k, and amplitude A.
(a) What is the wavelength of the wave? What is the frequency?
(b) What is the maximum velocity of a point on the string? Give the x and y component. (The wave is traveling in the x direction)
(c) Suppose this string is tied to a second string that has a mass density twice that of the first string. As the wave moves onto the second string, what is its new frequency and wavelength?
The specific heat of liquid water is 4.184 J/g. degree C. Calculate the energy required to heat 10.0 g of water from 26.5 degree C to 83.7 degree C.
What is the SUM of all of the coefficients in the reaction. 2 C8H18 + 25 O2= 16 CO2 + 18 H2O
Calculate the expectation value for the kinetic energy of the H atom with the electron in 2s orbital. Compare your result with total energy
If a 0.776 M solution of Co2+ has an absorbance of 0.608, what is the concentration of a solution with an absorbance of 0.962?
Balance the subsequent redox equation, using half-reactions. Presume that the reaction occurs in an aqueous solution.
A 64-kg man standing on a scale in an elevator notes that as the elevator rises, the scale reads 823 N. What is the acceleration of the elevator
Consider an ordinary 8 fluid oz. glass of water (H2O). Suppose, hypothetically, that all of the water molecules in the glass could be marked.
Given that 3.582 g of copper (II) chloride are dissolved in 2.478 litres of deionized water, answer the following: 1) How many moles of copper (II) ions are present in the sample
a. Explain what volume of hydrogen at 15.00atm and 350 degrees C must be supplied to produce 1.0 tone (1t=10^3 kg) of NH3. b. Explain what volume of hydrogen is needed in part as if it is supplied at 376atm and 250 degrees C
Gas chromatographic analysis of a mixture of organic compounds (GC-FID) gave the following results: hexane: 27%; heptane: 16%; hexanol: 18%; and toluene: 5%. The rests are solvent and impurities.
one of the steps in the commercial process for converting ammonia to nitric acid involves the conversion of nh3 to
Suppose the United States has an absolute advantage in the production of 2 goods compared to another country.
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