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A wheel with a moment of inertia of 5.5 kg•m2 is rotating with an angular speed of 54 rad/s. A second wheel with a moment of inertia of 2.25kg•m2, initially at rest, is suddenly coupled to the same shaft. What is the angular speed of the resulting combination? (Hint: think about momentum, before, and then after)
At 8:00 a.m., a patient receives a 58-mg dose of I -131 to obtain an image of her thyroid. If the nuclide has a half-life of 8 days, what mass of the nuclide remains in the patient at 5:00 p.m.
Use the molar volume of a gas, at STP, to determine the number of moles of H2 in 1620 mL of H2 gas
If you require delivering 2.33 g of a drug to a patient as well as you have a bottle of the drug dissolved in saline solution where the drug concentration is 14.5%w/v, define how many mL of the solution must be administered?
Problem- A cubic block of phosphorus pentabromide, PBr5, with sides of 3.76cm weights 186.6g. Has a density of what?
what is the maximum mass of an object traveling at 241 m·s-1 for which the de Broglie wavelength is observable?
the mass of an evacuated 255ml flask is 143.187g. the mass of the flask filled with 267torr of an unknown gas at 25c is
An aqueous solution containing 35.5 g of an unknown molecular (nonelectrolyte) compound in 156.3 g of water was found to have a freezing point of -1.4C. calculate molar mass of unknown compound
Using the data on a seperate page for the determination of heat of nuetralization extrapolate to the mixing time, determine the intial and final temp for the solutions. 50mL of 2.0M HCL and 2.02M NaOH were mixed and the heat neutralization was det..
Problem- Why are different products obtained when molten and aqueous NaCl are electrolyzed. Predict the products used.
In the laboratory a student measures the percent ionization of a 0.381 M solution of hydrofluoric acid to be 4.19 %.
Discuss how the exercise above tells you about the role of individual mandate in the A§ordable Care Act?
It takes 64 mL of .124 M KOH to neutralize 25.6 mL of H2SO4 solution. What is the concentration of the H2SO4 solution?
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