Time after which two lighthouses blink together
Question: "Sam" and "Martha" are local names for two lighthouses. Sam blinks every 12 seconds, Martha every 8 seconds. They blink together at midnight. How many seconds will pass before they blink together again?
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A recipe that makes 6 servings calls for 1/3 cup of orange juice and 1/2 cup of lemonade. Arlene modifies the recipe so that it can serve 9. How many cups of orange juice does Arlene need?
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Calculate the deBroglie wavelength of a 1000 kg automobile traveling at 100 km per hour. Calculate the deBroglie wavelength of an electron traveling at 1% of the speed of light.
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A few minuteslater, after traveling 100 feet east, the angle of depression tothe same landmark is determined to be 61°. Use this information to determine the height of the balloon.
Exactly 18.9 mL of water at 26.0 C are added to a hot iron skillet. All of the water is converted into steam at 100C. The mass of the iron skillet is 1.35kg and the molar heat capacity of iron is 25.19 J/mol C. What is the temperature change of th
What is the molar concentration of a solution of sulfuric acid, H2SO4, if 9.11 mL react completely with 0.254 g of NaOH which was dissolved in 200 mL of water?
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