What would be the refractive index of the perfect quarter wave anti-reflection coating for flint glass with n = 1.72?
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- Question 1 We rely heavily on the cotton plant for clothing, animal feed, and paper. Cotton comes from the fibers that surround the cotton seed. The seeds are borne within the boll or fruit of the plant. A single shirt needs about 280 grams of cotton. If each plant produces 30 grams of cotton, how many plants are needed to make one shirt? Show your calculations below and round off your answer to two significant figures. Hint: divide the amount needed per shirt by the yield per plant. Calculations: I Answer:(a) Assuming that each cubic centimeter of water has a mass of exactly 1 g, find the mass of 9.38 cubic meter of water. (b) Suppose that it takes 13.9 hours to drain a container of 91.3 m³ of water. What is the "mass flow rate," of water from the container?I need to know the number of years! There is only one part to this question. The pictures show the "Figure" and "Bar charts" tabs and the "Graph" tab says this: A curve showing the percentage of radioactive atoms remaining in a mineral sample is graphed on a coordinate plane. The horizontal axis, labeled "Age in half-lives," ranges from 0 to 6. The vertical axis, labeled "Percentage remaining," ranges from 0 to 100. The curve enters the viewing field with a negative slope at (0, 100). The magnitude of the negative slope is progressively reduced such that it is nearly horizontal as it exits the viewing field at (6, 0.02). Thank you!!
- Is the only standard unit in the metric system that has a prefix. what does this prefix means?.Consider two enclosed cylindrical tanks filled with air. Tank A is 8 ft tall while tank B is 7 ft tall, their diameter is both 6 ft. If the pressure and temperature inside both tanks are maintained equal, how much mass of air is inside tank B if tank A is filled with 3,872 Ibm of air? Solve using standard English units. Express your answer in slugs and round off to the nearest hundredths.Give an example of variables that have correlation but no causation exists? Explain why these variables have correlation. Could there be a lurking variable that these variables are both tied to/or do you think this correlation was caused by p-hacking? [2-3 sentence or a graph] You may NOT use the ice cream/crime example AND you may not copy information verbatim from websites. You may look at https://stats.stackexchange.com/questions/36/examples-for-teaching-correlation-does-not-mean-causation for examples but you need to (at a minimum) put what you find in your own words and explain what the true cause of the relationship is. In the ice cream/crime example it was found that in a particular city that when ice cream consumption went up so did petty crime (stealing/larceny). The true cause was that it was summer and it was hot (and kids didn't have school to keep them busy). How do we decide if the correlation coefficient is close enough to ±±1 to declare that there is…
- A blue whale has a length of 28,578 millimeters. what is the length of a blue whale in kilometers? Please show the different conversion factors used to solve. 8.36 grams of a mystery substance of food with a molar mass of 149.36 g/mol is burned in a bomb calorimeter. The water in the bomb calorimeter absorbs 105,961 Joules from the burning of the substance. Calculate the heat of combustion of the mystery substance in kJ/mol. (Please input your answer as a negative number.) (DO NOT PUT UNITS IN YOUR ANSWER.) Assume that all of the heat lost by the substance is transferred to the water and no heat is lost to the surroundings.Write the following number in scientific notation (with at least 3 significant digits): 20457.06405 x 10 A check answers
- Convert the total number of gallons of gas 2.90 per gallon (round trip 452 miles) to liters of gas.https://www.webassign.net/web/Student/Assignment-Responses/last?dep=25551922 5. [-/2.35 Points] DETAILS OSCOLPHYS1 1.3.023. If a marathon runner averages 7.3 mi/h, how long does it take him or her to run a 26.22-mi marathon? Additional Materials Reading 6. [-/2.35 Points] DETAILS SCOLPHYS1 1.4.030. A generation is about one-third of a lifetime. Approximately how many generations have passed during th generations Additional MaterialsComplete the calculations and keep the correct number of significant igures for the final results. AISO, represent each number in a scientific notation. a) 123 x 45 b) 123/45678 c) 1234 x 567/89 d) 12345 + 670