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- Suppose that your bathroom scale reads your mass as 65 kg with a 3% uncertainty. What is the uncertainty in your mass (in kilograms)?A marathon runner completes a 42.188-km course in 2 h, 30 min, and 12 s. There is an uncertainty of 25 m in the distance traveled and an uncertainty of 1 s in the elapsed time. (a) Calculate the percent uncertainty in the distance. (b) Calculate the uncertainty in the elapsed time. (c) What is the average speed in meters per second? (d) What is the uncertainty in the average speed?A marathon runner completes a 42.188-km course in 2 h, 30 min, and 12s. There is an uncertainty of 25 m in the distance traveled and an uncertainty of 1 s in the elapsed time. (a) Calculate the percent uncertainty in the distance. (b) Calculate the percent uncertainty in the elapsed time. (C) What is the average speed in meters per second? (d) What is the uncertainty in the average speed?
- What is the relationship between the accuracy and uncertainty of a measurement?A person measures his or her heart rate by counting the number of beats in 30 s. If 401 beats are counted in 30.00.5 s, what is the heart rate and its uncertainty in beats per minute?A calculator displays a result as 1.365 218 0 X 107 kg. The estimated uncertainty in the result is 2%. How many digits should be included as significant when the result is written down? (a) zero (b) one (c) two (d) three (e) four
- min where Given the equation p= m =13.75±0.06 and n =0.0787+0.0007. What is the absolute uncertainty in P? Select one: O a. 285±5 O b. 285±8 O c. 285+7 O d. 285±6An angle is measured to be 0.36±0.04rad. What is the absolute uncertainty in the sine of the angle? Submit Answer Incorrect An angle is measured to be 49.0±0.2deg. What is the absolute uncertainty in the sine of the angle? 2x10-³ You are correct. Previous Tries Your receipt no. is 152-1152? What is the absolute uncertainty in the cosine of the angle? Submit Answer An angle is measured to be 106.0±0.9deg. What is the absolute uncertainty in the sine of the angle? Submit Answer T.e2f_h. g= 4 e =7.83±0.04 f =0.204±0.007. h=14.14+0.05 and i=3.99±0.03- Given the equation where What is the absolute uncertainty in g? Select one: 1.35+0.02 a. O b. 1.4±0.1 Oc. 1.4+0.2 O d. 1.35±0.01
- Problem Statement: A ruler is repeatedly used to measure the length L of an object to the nearest mm. To no one's surprise, each measurement of L to the nearest mm gives the exact same answer a What is the uncertainty in the measured length L? Grade S Deductic uncertainty PotentialGiven the equation A =%- where b =17.4+0.1s and e=12.7±0.5s What is the absolute uncertainty in A? Select one: O a. 11.2+0.3s O b. 11.2±0.2 O c. 11.2+0.6 O d. 11.2±0.5sof 1 estion Given the equation f =- where = 3.43±0.78. What is the value and the absolute uncertainty in f (with the correct number of significant figures)? Select one O 0.2 Ob. 0.78 0.8 Od 1.26 O 1 Clear my choice If the length of an object is /=18.0±0.2cm What is the object's length in units of 772? There are 100cm in 1 m Select one: O 0.2±0.2m Ob. 0 1800+20m d. 0.180+0.002m Clear my choice 0.000180±0.000002m