A rectangle has length 3.24 m and height 0.532 m. To the correct number of significant figures, what is its area? A. 1.72 m² B. 1.723 m² C. 1.7236 m² D. 1.72368 m²
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- A spelunker is surveying a cave. She follows a passage 160 m straight west, then 230 m in a direction 45 degree east of south, and then 280 mm at 30 degree east of north. After a fourth unmeasured displacement, she finds herself back where she started. Part a)Use a scale drawing to determine the magnitude of the fourth displacement. Express your answer using two significant figures. Part B)Determine the direction of the fourth displacement. Express your answer using two significant figures6. The volume of a cube is 250 mm3. What is the length of one of the sides? (Express your answer in meters.)6. The weight of a bouquet of flowers can be expressed as 3.4x104 mg. If a daisy in the bouquet weighs 7.9x102 mg, what is the difference between the weight of the bouquet and the weight of the daisy?
- Q1) A) Find the answers to the following problems using the rule of Significant Figures a) (10.4168) m - (6.0) m b) (1.31) ст х (2.3) сm c) (5.7621) m / (6.201) m d) (2.5000) m + (32.85) m B) Represent each answer above in the scientific notationM Test Bank.pdf 24. A square with an edge of exactly 1 cm has an area of: A. 10-6 m² В. 10-4 m? C. 10² m² D. 104 m² E. 106 m² Ans: B 25. 1 m is equivalent to 3.281 ft. A cube with an edge of 1.5 ft has a volume of: A. 1.2 x 10² m³ В. 9.6 х 10-2 m3 С. 10.5 m3 D. 9.5 × 10-2 m³ Е. 0.21 m3 Ans: B 26. During a short interval of time the speed v in m/s of an automobile is given b where the time t is in seconds. The units of a and b are respectively: A. m· s?; m · s4 B. s/m; s/m C. m/s?; m/s³ D. m/s*; m/s* E. m/s*; m/s Ans: D 27. Suppose A = BC, where A has the dimension L/M and C has the dimensio has the dimension: А. Т/М B. L²/TM С. ТМ/L? D. L²T/M E. M/L?T Ans: A Chapter 1: MEASUQ23. The width of a man's hand was used as a common unit of length several hundred years ago. What are the advantages and disadvantages of using such a unit? Explain. E1. Suppose that a pancake recipe designed to feed three people calls for 600 mL of flour. How many milliliters of flour would you use if you wanted to extend the recipe to feed five people? E7. A crate has a mass of 9.40 kg (kilograms). What is this mass in grams? In milligrams?
- Practice) a. To convert feet (ft) to meters (m), the number of feet should be multiplied by which of the following conversion factors? i. 1 m/3.28 ft ii. 3.28 ft/1 m b. To convert sq.in to sq.ft, the number of sq.in should be multiplied by which of the following conversion factors? i. 144 sq.in/1 sq.ft ii. 1 sq.ft/144 sq.in c. To convert sq.yd to sq.ft, the number of sq.yd should be multiplied by which of the following conversion factors? i. 1 sq.yd/9 sq.ft ii. 9 sq.ft/1 sq.yd 3. (Practice) Determine the final units of the following expression: 9.8m/s2 ×100cm/1m×1in/2.54cm×1ft/12in 4. (Practice) a. Determine the conversion factors that can be used to convert miles per gallon (mpg = mi/gal) to kilometers per liter (km/liter), given that 1 liter = 0.22 gallons and 1 kilometer = 0.6214 miles. b. Using the conversion factors you determined in Exercise 4a, convert 25 mpg into km/liter. 5. (Automotive) a. An automobile engine’s performance can be determined by monitoring its rotations per…Can i get help with these problems please3. Perform the following calculations and report your answer to the correct number of significant figures. c. 1.0042 +0.00621 d. (9.187 x 0.182) 3.1
- BEHAICE EVA MAC Hint 1 The following lengths are given in meters. Use metric prefixes to rewrite them so the numerical value is bigger than one but less than 1000. For example, 7.9 × 10-3 m can be written as 7.9 mm. a. 4.7 x 10° m = ? Answer all b. 0.054 m = ? point? C. 6.9 x 10 – 10 ? m = cter? d. 5.7 x 104 m = m/sona cortain daya. Multiply (1.359 x 109 m) by (2.4 x 10-¹0 m). Express your answer in scientific notation. b. Divide 1.24 x 108 m by 0.00020 sec. Express your answer in scientific notation and by using a prefix.1. The floor of a rectangular building has an area of 120 square meter. The length of the floor / is 4m bigger than its width, w. Solve for I. Hint: Start with the equation of the area in terms of I. What kind of equation do you get? /= 48.11 X feet ! No, that's not the correct answer.