For questions 1-3, suppose that in cr2 S = we have that the error in measuring r and L are ±2% and ±5% respectively. The formula for the error in the calculated value of s is 1. 2. Consider the statements (decide upon the correctness of them): dr (i) Ar =±2%r; AL = ±5%L ; dL :=±5% dt (ii) -=±2%; dt 3. Consider the statements (decide upon the correctness of them): (i) The minimum error in s is 6% (ii) The maximum error in s is 14%
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- A. Unit Conversion. Show your complete solution. Write your answers up to 3 significant figures. Recall: 1 Gy = 100 rad, 1 Sv = 100 rem 1. 3.5 μGy to mrad 2. 5.0 mrad/h to mGy/h 3. 45.0 mrem to μSvWhat is the difference between accuracy and precision? Explain 2. Calculate the volume and percent error/uncertainty in the volume of a rectangular sample block of length 13.51 ±0.05 cm, width 6.23 ±0.02 cm, and thickness of 1.76±0.02 cm. 3. Calculate the mass density and uncertainty in the mass density of the sample block. Mass of the block is 289± 1gr. 1.The calibrated length of a baseline is 402.267 m. A mean observation for the distance is 402.251 m with a standard deviation of ±0.0052 m after 6 readings with an EDM. a. Is the observed distance statistically different from the calibrated length at a 5 percent level of significance? b. Is the observed distance statistically different from the calibrated length at a 10 percent level of significance?
- If the number of significant figures is 6, what is the value of the pre-specified Error(?s) Select one: O a 0.000005% O b. 0.0005% O c. 0.005% ০ d 0.00005%A 11-inch candle is lit and burns at a constant rate of 1.3 inches per hour. Let t represent the number of hours since the candle was lit, and suppose R is a function such that R(t) represents the remaining length of the candle (in inches) t hours after it was lit. a. Write a function formula for R in terms of t. R(t)=11-1.3t Preview b. What is the domain of R relative to this context? Enter your answer as an interval. [0,8.46] Preview c. What is the range of R relative to this context? Enter your answer as an interval. Preview no answer given d. What is the domain of R¯ relative to this context? Enter your answer as an interval. |其 Preview e. What is the range of R1 relative to this context? Enter your answer as an interval. Preview f. Solve R(t) = 6.2 for t. t = 3.69 Preview g. What does your solution in part (f) represent in this context? Select all that apply. How many hours since the candle was lit when it is 6.2 inches long. * The length of the candle (in inches) 6.2 hours after…A series of four measurements of the ratio of the circumference to diameter of a disk are made. The results of these measurements are: 3.140, 3.133, 3.132, 3.133. The average of the four measurements is the experimental value for Pi-Lab and the accepted value is Pi = 3.141. What is the percent error of these measurements? a) 1 % b) 2% c) 0.5% d)0.2%
- I need help in these questions. Please do them correctly and 100% Please i have only 30 minutes. No need to add lengthy exlanations. Just tell correct answers. Its very important so please tell correct answersACTIVITY 1. Identify the levels of accuracy and precision of the following sets of values. Put a check (/) on the blank(s) to describe the set it/they follow(s). Theoretical value: 1 kg Set A 996 g 324 9 762 g Accuracy: Accuracy: Set B 989 g 1 045 g 1 132 g Accuracy: Set C 768 g 783 g 792 g Set D 997 g 994 g 998 g Accuracy Precision: Precision: Precision: Precision: ACTIVITY 2. Answer the following problems completely. 1. A carpet is to be installed in a room of length 9.72 m and width 5.3 m. Find the area of the room retaining the proper number of significant figures. 2. The speed of light is now defined to be 2.997 924 58 x 10" m/s. Express the speed of light to (a) three significant figures, (b) five significant figures, and (c) seven significant figures. 3. Suppose your hair grows at the rate of 1/32 inch per day. Find the rate at which it grows in nanometers per second. Because the distance between atoms in a molecule is on the order of 0.1 nm, your answer suggests how rapidly…Three students, Tom, Sally and Kevin, did an experiment where the accepted size of nano-particles of calcium-tin-oxide is 105.0 nm. Their findings are given in the table below. Whose measurement is most precise, and whose is most accurate? Note that measurement is done in nanometers (nm). Kevin (nm) Sally (nm) 107.0 Trial No. Tom (nm) 1. 103.7 107.7 2. 105.6 101.1 107.5 3. 106.9 105.4 107.9 Mean 105.4 104.5 107.7 None of the given options Tom's measurement is most precise, and Kelly's measurement is most accurate. Sally's measurement is most precise, and Kelly's measurement is most accurate. Kevin's measurement is most precise, and Tom's measurement is most accurate
- What is the answer? Use a given, required, and solution format. Provide a FBD and show a complete handwritten solution. Simplify thr answer and use the units.(a) What is the coefficient of variation (CV)? Why do you study such variations? Explain using a real-life example.(b) Among the different measures of dispersion which one do you think is better and why?The following table gives the distribution of gas bills (GB’s) of some households (hhs) in a city- GB’s ($.’0) No. of hhs 375-450 41 450-525 95 525-600 31 600-675 61 675-750 19 (i) Calculate the ideal measures of dispersion.(ii) Make comments from your findings.You are measuring the length of a tube using a ruler. Your actual measurement of the tube is 6 mm ± 1 mm. Compare the accuracy and precision of your measurement compared to the expected measured value of 6.0 mm ± 0.1 mm Describe the accuracy of your measurement: Choose... Describe the precision of your measurement: (Hint: Look at the number of decimal places in the measurement.) v Choose... I don't know High Low Check