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Today, most traffic lights have a delayed green, meaning there is a short time delay between one light turning red and the light on the cross-street turning green. An
Create a proper plot of the violation time (V, on the ordinate) and the time after installation (t, on the abscissa) for all three intersections on a single graph.
Use polyfit to determine linear models for each data set. For each model, add the trendline and the associated trendline equation to the graph. Use an appropriate location for the equations to clearly associate them with the correct trendline.
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- Refer to the Worksheet shown, set up to calculate the displacement of a spring. Hooke's law states that the force (F, in newtons) applied to a spring is equal to the stiffness of the spring (k, in newtons per meter) times the displacement {x, in meters): F= kx. ;Chapter 10, Problem 161CA, Refer to the Worksheet shown, set up to calculate the displacement of a spring. Hooke's law states Cell A3 contains a data validation list of springs. The stiffness (cell 83) and maximum displacement (cell C3) values are found using a VLOOKUP function linked to the table shown at the right side of the worksheet. These data are then used to determine the displacement of the spring at various mass values. A warning is issued if the displacement determined is greater than the maximum displacement for the spring. Use this information to determine the answers to the following questions. Write the expression, in Excel notation, that you would type into cell 86 to determine the displacement of the spring.…arrow_forwardA special sensor is designed to sense the percent vapor present in a liquid vapor mixture. If during a static calibration the sensor indicates 80 units when in contact with 100% liquid,0 units with 100% vapor ,and 40units with a 50:50% mixture,determine the static sensitivity of the sensorarrow_forwardTruncation errors are increased as the round-off errors are decreased.Group of answer choices True False Say, you have a thermometer and you are checking the temperature of a body that has a temperature of 36o Using your thermometer five times, it gives you the following measurements: 29oC, 29.2oC, 29.3oC, 28.9oC, and 29.1oC. What can we conclude about the accuracy and the precision of the thermometer?Group of answer choices The thermometer is not accurate and not precise The thermometer is faulty. The thermometer is accurate and precise The thermometer is not accurate but precise. Say, you have a thermometer and you are checking the temperature of a body that has a temperature of 36o Using your thermometer five times, it gives you the following measurements: 36oC, 35.6oC, 36oC, 37oC, and 36.2oC. What can we conclude about the accuracy and the precision of the thermometer?Group of answer choices The thermometer is accurate and precise. The thermometer is accurate but not precise. The…arrow_forward
- In a linear spring finite element model, as per the finite element model’s sign convention, which one of the following statements is true? Select one: a. If Fe1 is positive then the spring is under tension b. If Fe2 is negative then the spring is under tension c. If Fe2 is positive then the spring is under compression d. If Fe1 is positive then the spring is under compression Clear my choicearrow_forwardA researcher is reporting characteristics of the subjectsshe used in a recent study. Two of the variables are haircolor and age. Which of these are appropriate choices tosummarize these data?A) Bar charts for both hair color and age.B) Histograms for both hair color and age.C) A bar chart for hair color and a histogram for age.D) A histogram for hair color and a bar chart for age.E) Either bar charts or histograms are good choices forboth hair color and age.arrow_forwardSelect the correct answer9. One criterion for decision-making in the detection process is to opt for the minimum...A. fidelity.B. phase.C. SNR.D. Euclidean distance.arrow_forward
- The amount of radiation received per unit time by a person working near a radioactive source, commonly called the dose rate, is measured in rem hr-1. The safety regulations forbid dose rates in excess of 7.5 × 10-4 rem hr-1. The γ dose rate from the 4219K source is found to be 3 × 10-3 rem hr-1 at a distance of 1 m. What is the minimum distance from this source at which itis safe to work? After how long will it be safe to work at a distance of 1 m from the source?arrow_forwardWhich of the following statements is incorrect? a. As a result, molecules will flow in one of six potential ways. As a result, it is reasonable to predict that one-sixth of it will move in the positive direction.b. Flux is the rate at which something is transported per unit area of space.c. Flux can occur even if there is no driving forced.Initially, the flow for transport processes is nonlinear, but over a period of time, the flux becomes linear.arrow_forwardAfter creating a decision matrix for two types of materials used to design a safety belt, an engineer assigns a weight of 4 to nylon for thickness and a weight of 5 to polyester for thickness. The engineer also assigns a weight of 4 to nylon for strength and a weight of 3 to polyester for strength. Polyester is more expensive than nylon. Describe which material would be preferable to use for the safety belt, if cost is prioritized as a criterionarrow_forward
- The processing of raw coal involves “washing,” in which coal ash (nonorganic, incombustible material) is removed. The article “Quantifying Sampling Precision for Coal Ash Using Gy’s Discrete Model of the Fundamental Error” (Journal of Coal Quality, 1989:33–39) provides data relating the percentage of ash to the volume of a coal particle. The average percentage of ash for six volumes of coal particles was measured. The data are as follows: Volume (cm3) 0.01 0.06 0.58 2.24 15.55 276.02 Percent ash 3.32 4.05 5.69 7.06 8.17 9.36 Using the most appropriate model, predict the percent ash for particles with a volume of 48 cm3. Round answer to three decimal places. * the answer i got was of 6.260 was wrongarrow_forwardTony’s Barbershop is run, owned, and operated by Anthony Jones, who has been cutting hairfor more than 20 years. Anthony does not take appointments, so the arrival pattern of customers is essentially random. Traditionally, the arrival rate had been about one customer every50 minutes. Two months ago, the local paper ran an article about Anthony that improved business substantially. Currently, the arrival rate is closer to one customer every 35 minutes. Haircutsrequire an average of 25 minutes, but the times vary considerably depending on customerneeds. A trim might require as little as 5 minutes, but a shampoo and styling could take as longas an hour or more. For this reason, the exponential distribution seems to provide a reasonablygood fit of the service time distribution.Anthony’s customers have always been patient, but ever since business picked up, somehave complained that the wait is too long. Anthony is considering taking his cousin Marvin intothe business to improve customer…arrow_forward(a) An infrared gas analyser has a span of 01% of the component being measured. It operates at atmospheric pressure and was calibrated when the barometric pressure was 0.995 bar. The barometric pressure changes to 1.015 bar. What will the instrument read when the actual percentage of the component is (i) 0.5% (ii) 0.8%?arrow_forward
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