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- 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…The accepted value of the density of aluminum at standard temperature and pressure is 2.70 g/cm³ What is the discrepancy between the accepted density and your experimental density in g/cm²? Is this discrepancy significant? QUESTION 9 The accepted value of the density of aluminum is 2.70 g/cm³ while our computed value is 2.8 g/cm³ What is the percent uncertainty of our experimental density (observing correct significant figures)? a. 0.037 Ob.37 c.3.70 d.4 0.5 poinIf 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%
- This was wrong. Can you solve this again with these numbers? What is the root mean square velocity, vrms, for Hydrogen molecules (H2) at 20oC? Hint: How many amu does an H2 molecule contain. 1 amu = 1.67 x 10-27 kg Boltzman's Constant, k = 1.38 x 10-23 J/K Give your answer in m/s to 4 significant figures (NO DECIMALS)Question 6 5 p A standardized exam is known to be normally distributed with a mean score of 82 and a standard deviation of 6.58 in the examination. (Hint: so this means you can convert individual exam scores to z-scores and calculate percentile rank). One student named Amy has an exam score of 78. For Amy's score, compute the corresponding z score. Make sure to round the z-score to the nearest hundredth place (Hint if the z-score is 0.3615, then you round it to 0.36).You repeat a measurement that contains random error many times, construct a histogram of your measurements and determine that the FWHM of the histogram is equal to 1.9. What is the uncertainty in one measurement, δn, equal to?
- Suppose you receive an average of 4 phone calls per day. What is the probability that on a given day you receive no phone calls? Just one call? Exactly 4 calls?Which of the following is a correctly reported confidence interval? O (3.782 +/- 0.02) s O (4 +/- 0.1) s (3.782 +/- 0.002) s O (5.27 +/- 0.23) sa) A simple spring is used to measure force. The spring is considered to be linear, so the F = kx, where F is the force in Newton, k is the spring constant in Newton per centimeter, and x is displacement in cm. If x = 20.0 ± 1.25 cm andk 800 ± 16 N/cm, %3D calculate the maximum possible error and the uncertainty of the measured force in absolute (dimensional) and relative (%) terms.
- A student wanted to find the value of factor A experimentally in the equation F=9.2Av?. If the student plotted the values of F on the y-axis arm the values of v2 on the x-axis. The value of factor A can be found by which one of the following relations: Select one: OA. 11.96 x slope OB. 18.40 x slope OC 9.20 x slope D.0.11 x slope OE. 0.11 4 slope ge Next page ENG 5:00 PM UK 5/24/2021 DELLS Can 6 PAR к Торс K Unit K In x K Moti = Cop K Unit S Spee S Topo S Math Micr eb.kamihq.com/web/viewer.html?source-filepicker&document_identifier=137VZR5BZOVSAIMOA55WU555_CvJ9NacO + 100 P e Interpreting Graphs Answer the questions following the graphs on each side Dietance va. Time 2 7 10 11 12 13 14 Time in soconds 1. From 1 second to 2 seconds, how fast is the object traveling. (Take the difference in distance and divide it by the time in between the 2 distances) 2. Is the object going as fast between 9 and 12 seconds as it is between 1 and 4 seconds? How can you tell? 3. What is the motion of the object between 4 and 6 seconds? acerm 1. Derive the following expression from the definition of k and p = 1(dp) K = plap).