for forensic chemistry : If a vehicle with four wheels is traveling in a linear path through soft dirt, how many and which tires would you expect to leave tire track impressions?
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- If a vehicle with four wheels is traveling in a linear path through soft dirt, how many and which tires would you expect to leave tire track impressions?
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- As part of a science project, you study traffic patterns in your city at an intersection in the middle of downtown. You set up a device that counts the ears passing through this intersection for a 24-hr period during a weekday. The graph of hourly traffic looks like this. a. At what time(s) does the highest number of cars pass through die intersection? b. At what time(s) does the lowest number of cars pass through die intersection? c. Briefly describe the trend in numbers of cars over the course of die day. d. Provide a hypothesis explaining the trend in numbers of cars over the course of the day. e. Provide a possible experiment that could test your hypothesis.You can analyze for a copper compound in water using an instrument called a spectrophotometer. [A spectrophotometer is a scientific instrument that measures the amount of light (of a given wavelength) that is absorbed by the solution] The amount of light absorbed at a given wavelength of light (A) depends directly on the mass of compound per liter of solution. To calibrate the spectrophotometer, you collect the following data: Plot the absorbance (A) against the mass of copper compound per liter (g/L), and find the slope (m) and intercept (b) (assuming that A is y and the amount in solution is x in the equation for a straight line, y = mx + b). What is the mass of copper compound in the solution in g/L and mg/mL when the absorbance is 0.635?Archimedes, a famous Greek scientist, was given a problem by King Hieron II of Syracuse (Sicily). The king suspected that his crown, which was supposed to be made of pure gold, contained some silver alloy, and he asked Archimedes to prove or disprove his suspicion. (It turned out that the crown did not contain silver.) How would you experimentally determined whether or not the crown was pure gold? (Hint: The method came to Archimedes when getting into a full bathtub. See the footnote in Experiment 22 for Archimedes’ solution.)
- What are replicates in Analytical Chemistry? O The component of a sample that repeats over different assays. Similar assays done to different samples A sample that contains exactly the same amount of analytes than the original sample similar samples that are analyzed at the same time and in the same way4. Describe at least three systematic errors that might occur while weighing a solid on an analytical balance.Part 7) Looking towards summer, pretend for a moment that you won a scooter. You are so excited to ride the mean streets of Almaden all summer! You have a choice of fuels that the scooter will use, but you have a budget and want to know which fuel will allow you to travel the most miles per 1.000 L. First calculate the mass of your scooter (250 pounds) and yourself together = 350 pounds Based on that mass, and how much theoretical energy you calculated from 1.000 L of fuel, how far could you go with maximum efficiency?
- TARTING AMOUNT X Question 13 of 30 The Bay of Fundy in Nova Scotia, Canada is reported to have the largest tides in the world with high tide and low tide occurring two times per day. The tides can measure over approximately 50.0 ft in height. At the Hopewell Rocks at Hopewell Cape, on a specific day height increase was recorded as a rate of 6.08 feet per hour. What is the rate in meters per second ? 60 ADD FACTOR x ( ) 50.0 ft/hr - 111 m/c 0.0309 0.332 ft 12 ANSWER 1.20 x 10³ hr 5.15 x 10-4 7 day RESET 5 6.08 min 0.3048 mFour individuals are suspects in a car theft. A small amount of blood was left in the car, likely from when the thief forced the window. The blood sample was amplified and compared to samples from the suspects. Lanes I, II, III, and IV are the samples from the four individuals. The lane marked "evidence" is the sample from the car. I II III IV Evidence - Which suspects, if any, can be eliminated? II and III II and IV I and IV I, III, and IV I and III I, II, and III IncorrectOf the flasks or laboratory instruments that are given, express their function (specify -if they can be used to measure- if their measurements are approximate or relatively exact) Erlenmeyer flask beaker burette
- Analytical Chemistry The analyst would use an analytical balance during sample analysis, what would you recommend her/him to do before using the said instrument?shboard My Home C OWLV2 | Online teaching and learning resource from Ceng [References] The population density of worms in a particular field is 33 worms per cubic meter of soil. How many worms would there be in the top meter of soil in a field that has dimensions of 1.50 km by 2.5 km? wormsAn analyst conducted suction filtration for a certain 3.0 gram of solid. After filtration, the weight of the collected powder was 2.8 grams. Calculate the recovery efficiency of the sample.
