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- Q4: Find the fraction that is equivalent to the following repeating decimal 0.576923076923076923..Which one of the choices below represents the preferred practice regarding significant figures when multiplying the following: 15.0 x 5.6 x 2.33? Select one: а. 200 b. 196 O c. 195.720 O d. 195.72 e. 195.7I. Significant Figures Solve the following problems: A. Round off 0.004286 to 3 significant figures. B. Round off 149.691 to 1 decimal place. C. Round off 30.562 to 3 significant figures.
- 1. Multiplication or division: keep the same number of significant figures in the product or quotient as is in the least precise factor. Examples: 3.1 * 25.6=79.360000... = 79 6.7/981.0=0.0068297655... = 0.0068 keep only 2 significant digits 2. Powers or roots: keep the same number of significant figures as in the original number. Example: Sqrt(38) 6.164414... keep only 2 significant digits = 6.2 (11.6)² = 134.5600000... = 135 Exercises 3. Addition or subtraction: Round off, to the number of decimal places determined by the number with the least number of places beyond the decimal point. Example: 31.5+24.61 +3.28+1.19 +0.762 +0.003 = 61.345 1. 3.9 * 78.9= = 61.3 (correct result) 2. 32.01 +96.321 +36.98 +0.00023 +28.9= 3. 26.9/98 = 4. 421 0.003 =The extraterrestrials in an exoplanet in a distant galaxy have the following units to measure distances.1 dray = 12 elim; 1 toof = 24 dray; 1 chin = 1250 toof. a. Convert 2.4 chin to elim. __________________ elim b. The alien grows vegetables in 16.0 square dray (i.e., dray2) patch. Calculate the area of the patch insquare elim (i.e., elim2).____________ clim22 part question - 17. a. Convert 125.0km to centimeters: b. Convert 200.0 mls to Liters.
- Based on the following Figure, the floor cavity ratio, FCR is. 1m section 3 m 0.5m 16 m 12 m plan 20 m O a. 15 O b. 3.75 O c. Other answer O d. 1.25 O e. 0.6251.What is physical quantity? A car is moving with the velocity of 30 mihr¹. Convert this value to FPS unit system. Write the following quantities in powers of ten. (a) 5 nF (b) 9 GB云2 A eclass.yorku.ca U PHYS18... M (2,045)... M(98) - fa.. 105-Fe... Future S. U of Study... Ly Assignm... YouTube M(2,045)... HYS1800 A - Engineering Mechanics (Fall 2021-2022) My courses / SC/PHYS1800 A - Engineering Mechanics (Fall 2021-2022) / Work and Energy / Assignment 6 A car travels at a steady 30.3 m/s around a horizontal curve of radius 111 m. What is the minimum coefficient of static friction between the road and the car's tires that will allow the car to travel at this speed without sliding? Answer: Next page MacBook Air DD 08 F3 64 F5 F6 F4 F2
- The density (p) of the atmosphere as a function of altitude (A) can be approximated by the model shown in the graph. What are the units of the constant 1.225? O A. dimensionless O B. kg m^3 OC. kg/m^3 O D. m^2/kg p= 1.225 e0.0001 A O E. m OF. kg O G. m^3/kg O H. kg/m^2 Altitude (A) (m] Density (p) [kg/m®]1%A9 li. t LTET 4G+ Vol) O A X O U 9:-7 Second H.W.pdf 1. Draw and label the vector with these components. Then determine the magnitude and angle of the vector. a- Az = 3 ,A, = -2 b- B, = -2 ,B, = 2 2. What is the speed of horse in meter per second that runs a distance of 1.2 miles in 2.4 minutes? 3. A car moving along X- axis according on the function: X (t) = 2 t2 + 5t +7 on [1,2] Find: a- The average velocity. b- The acceleration at 3s. 4. Julie is walking around a track at a 2m/s for some exercise. She then decides to start jogging so she accelerates at a rate of 0.5m/s? for 3 seconds. How far did Julie travel from the time she started to accelerate to the end of the 3 seconds? 5. Ralph uses a 2000 to do this. force to push his car along a road for 1000 m. It takes him500 s a- Calculate the amount of work that Ralph did on the car. b- Calculate the amount of power that he generated. IIUnginal number. A.) 149,600,000 B. 0.000000028 2 Move the decimal point to the right or the left to make the number between 1 and 10. Count the number of decimal places moved and note the direction. A. 1.49600000 = 8 places to the left B. 00000002.8 = 8 places to the right 3Rewrite the number deleting all extra zeros to the right or to the left of the decimal point.
