In Parts A and C‚ the relationship between surface area and volume was investigated. Plasticine was formed into a cube and a sphere; both shapes were cut in half. It was found that plasticine volume should not vary‚ two halves have a greater surface area than a whole‚ and cubes have a greater surface area than spheres of the same volume. In Part B‚ the relationship between diffusion and surface area to volume ratio was investigated. Three agar-phenolphthalein-sodium hydroxide cubes of different sizes
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Surface area / Volume ratio Experiment Introduction: The surface area to volume ratio in living organisms is very important. Nutrients and oxygen need to diffuse through the cell membrane and into the cells. Most cells are no longer than 1mm in diameter because small cells enable nutrients and oxygen to diffuse into the cell quickly and allow waste to diffuse out of the cell quickly. If the cells were any bigger than this then it would take too long for the nutrients and oxygen to diffuse into
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Applications of Differentiation 1. If a line y = x + 1 is a tangent to the curve y2= 4x ‚find the point the of contact ? 2. Find the point on the curve y = 2x2– 6x – 4 at which the tangent is parallel to the x – axis 3. Find the slope of tangent for y = tan x + sec x at x = π/4 4. Show that the function f(x) == x3– 6x2 +12x -99 is increasing for all x. 5. Find a‚ for which f(x) = a(x+sinx)+a is increasing 6. Find the intervals in which the function f ( x ) = x3 - 6x2 + 9x + 15 is
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Respiratory Rate and Tidal Volume [pic] The total amount of air moved in and out of the lungs each minute (pulmonary ventilation) depends upon 2 factors: size of each breath (tidal volume) and number of breaths/minute (respiratory rate). For example‚ suppose your tidal volume is 500 mL (0.5 liters) and you breathe 15 times/minute. Your pulmonary ventilation = 15 breaths/min x 0.5 L/breath = 7.5 L/min. Pulmonary Ventilation = (Respiratory rate; breaths per minute) x Pulmonary Ventilation
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Wuthering heights summary Volume 1 chapter 1 : • It is the year 1801. While staying in Yorkshire‚ Mr Lockwood pays his landlord Heathcliff ‚ a somewhat unwelcome visit in order to introduce himself. • We are introduced to Lockwood‚ Heathcliff ‚ heathcliff’s servant Joseph and a female servant. • The property Wuthering Heights is described. Volume 1 Chapter 2: • Lockwood repeats his visit to the Heights and meets Hareton and Cathy Heathcliff. • Lockwood mistakes a heap of dead rabbits for
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translated up to the beginning of chapter 6 1 The bell signaling the end of class rang. Even now that the eyes of the teacher looking off the platform is gone due to the computerization of the classes‚ the sense of release after getting released does not change. Today has been especially rowdy. That should be pretty much expected too. Today is February 25‚ 2096 CE‚ Tuesday. The day the second semester for the year 2096 ends. What makes today different from any other day is merely the fact that classes are
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Easy Game Making Sense of No Limit Hold ‘em Vol. 1 Easy Game Vol. 1 is © 2009 Andrew Seidman‚ except HU Play for Beginners‚ which is © 2009 Matt Colletta Table of Contents Introduction .........................................................................................................................................................3 A Game of Information ..............................................................................................................................
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Changes‚ Changes‚ and More Changes Hudson County Community College isn’t a perfect school‚ but there are a lot of things that they have room to improve on. I honestly don’t have many complaints about this school‚ I feel alright about it‚ I am not impressed but I am also not outraged by anything. Even though I don’t have many complaints about this school it doesn’t mean that I don’t feel that they have things that they should improve on. The biggest problem I have with this school is the service
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In the express mail industry shipment volume was increasing quickly‚ but prices were falling. For this reason total revenues of the industry had been growing by only 10-15% each year and were expected to grow about 10% for the next five to ten years. The customer base of the industry was broadening due to acceleration in the pace of business. However‚ customers of this industry were not very loyal‚ even though discounts based on volume did encourage customers to focus on one carrier. Customers chose
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LESSON 3: MOLAR VOLUME QUESTIONS 1. Calculate the density of the least dense gas‚ hydrogen‚ at 25⁰C and 101.3kPa. [0.083g/L] 2. Calculate the density of the densest gas‚ uranium (VI) fluoride (UF6) at 70⁰C and 25.0kPa. [3.09 g/L] 3. An unknown monoatomic gas X has a density of 5.37g/L at 25⁰C and 101.3kPa. Calculate the molar mass of the gas and determine its identity. [ 131.028g/mol; Xe] 4. Calculate the density of ammonia gas in grams per litre at 18⁰C and 100.4kPa. [0.706g/L] SCH3U0 Gases
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