Approximate frequency of a photon
What is the approximate frequency of a photon having an energy 4.85 X 10-19 J? (h = 6.63 x 10-34 Jxs)
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When 25.0mL of .500M H2SO4 is added to 25.0mL of 1.00M KOH in a coffee cup calorimeter at 23.50 degree Celcius, the temperature rises to 30.17 degree celcius. Calculate ethalpy of this reaction.
A municipal bond carries a coupon rate of 7% and is trading at par. A corporate pays a rate of 10%at what marginal tax rate would an investor be in deferent between these two bonds?
If the titrant has a molarity of 0.2000 M and there are 50.00 mL of analyte present, what is the molarity of the analyte?
A compound is 40.0 , 6.70 , and 53.3 by mass. Assume that we have a 100.- sample of this compound.The molecular formula mass of this compound is 180 . What are the subscripts in the actual molecular formula?
Write a 200 word essay in any style and identify and discuss three key features associated with the combustion of polymeric materials or compounds that are relevant to the safety.
If you buy a 6.5% coupon (assume semi-annual payments), 25-year bond today when current market rates are 5.4%, and you own this bond for 5 years and sell it when current market rates are 7%, what will be the gain or loss in the price of this bond
The neutrons from one treatment source have an average velocity of 3.1 x 10^7 m/s. If the velocities of individual neutrons are known to within 2% of this value, what is the uncertainty in the position of one of them?
If the pressure increases to 800. torr, how many moles of gas were added to the container? Assume a constant-volume container.
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James was recently on a date at a local sushi restaurant and began to have tremor, sweating, and increased blood pressure.
Choose a medical condition from the fluid, electrolyte, or acid-base system other than hyponatremia and explain the pathophysiological changes that may occur.
Peter is admitted to the hospital for an appedectomy. After the operation, he is released and returns home. Within a few weeks,
For this discussion, you practice conducting a Diagnostic Impression and writing up a Discussion of the Diagnostic Impression.
Prompt: The call to the nursing vocation has been attributed to religion and spiritual beliefs over the centuries.
Problem: Which action will the nurse take after administering sulfonamide to a patient?
Which class of antibacterials will the nurse anticipate being prescribed to treat a respiratory tract infection for a patient with an allergy to penicillins?