List five things that make traffic control device effective. List five things th

Question

List five things that make traffic control device effective. List five things that make traffic control device effective. 1-1 f 1.4% of the mass of a human body is calcium, how many kilograms of calcium are there in a 185-pound man? 2- A fishing boat accidentally spills 3.0 barrels of diesel oil into the ocean Each barrel contains 42 gallons. If the oil film on the ocean is 2.5 x 102 nm thick, how many square meters will the oil slick cover? 8.00 ft ceiling? I in. 2.54 cm (exactly): 1 L 103 cm3 gallons. How much will your credit card be charged in American dollars? floor in units of ft2? (3 ft 1 yd) figures, for the following calculation? (965.43 x 3.911)+9413.4136 3- How many liters of air are in a room that measures 10.0 x 11.0 ft and has an 4- Gas is sold for $1.399 per liter in Toronto, Canada. Your car needs 12.00 5- If a room requires 25.4 square yards of carpeting, what is the area of the 6- What answer should be reported, with the correct number of significant 7- The outside air temperature is 30°F, what is the temperature in Kelvin? 8- The average density of Earth is 5.52 g/em. What is its density in: a) Kg/m; b) lb/ft 9. A small hole in the wing of a space shuttle requires a 20.7 cm2 patch. (a) What is the patch's area in square kilometer (km')? (b) If the patching material costs NASA $3.25/in2, what is the cost of the patch? 10 At the South Pole base station in Antarctica, when the temperature is -100.0 °F, researchers who live there can join the "300 Club" by stepping into a sauna heated to 200.0 °F then quickly running outside and around the pole that marks the south pole. What are these temperatures in C? What are these temperatures in K? In terms of C and K, can you become a member of 300 Club?

Explanation / Answer

Ans 1

Mass of human = 185 lb

Mass of calcium = 1.4% of mass of human

= (1.4/100) x 185 lb

= 2.59 lb x 1kg/2.205lb

= 1.175 kg

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