termed compound bars. Consider therefore‚ a compound bar consisting of n members‚ each having a different length and cross sectional area and each being of a different material. Let all member have a common extension ‘x’ i.e. the load is positioned to produce the same extension in each member. Where Fn is the force in the nth member and An and Ln are its cross - sectional area and length. Let W be the total load‚ the total load carried will be the sum of all loads for all the members.
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(do)‚ the image distance (di)‚ and the focal length (f). The equation is stated as follows: [pic] The magnification equation relates the ratio of the image distance and object distance to the ratio of the image height (hi) and object height (ho). The magnification equation is stated as follows: [pic] These two equations can be combined to yield information about the image distance and image height if the object distance‚ object height‚ and focal length are known. Example Problem
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the resistance of a wire. In this experiment I will be using a metal nichrome wire to show the resistance when the length and width is changed. Variables Variables that I am going to keep the same. Variables that I am going to change. Width- 0.36mm2 Material- Nichrome wire Voltage- 2V Temperature- Room Temperature Length- 10cm‚ 20 cm‚ 30cm‚ 40cm‚ 50cm Material- Nichrome Length- 50cm Voltage- 2V Temperature- Room Temperature Width- 0.36mm2‚ 0.32mm2‚ 0.24mm2‚ 0.16mm2‚ 0.12mm2‚ 0.08mm2 In
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your school. = 3.142] [Use Answer: Volume of 5kg cake = Base area of cake x Height of cake 3800 x 5 = (3.142)( )² x 7 (3.142) = ( )² 863.872 = ( )² = 29.392 d = 58.784 cm 2)The cake will be baked in an oven with inner dimensions of 80.0 cm in length‚ 60.0 cmin width and 45.0 cm in height. a)If the volume of cake remains the same‚ explore by using different values of heights‚hcm‚ and the corresponding values of diameters of the baking tray to beused‚d cm. Tabulate your answers Answer: First
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nextInt(); int[][] pascalA; if (pascalN > 0){ pascalA = pascalsTriagnle (pascalN); int space = pascalN; for (int pC=0; pC<pascalA.length; pC++) { space(space); for (int pC2=0; pC2<pascalA[pC].length; pC2++){ System.out.print(pascalA[pC][pC2]+" "); } space(space); space--; System.out.println(""); } } } public static int[][] pascalsTriagnle (int n) { int[][] newPA =
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weight that dangles from a pivot so that it can swing freely). I will do this by tying a metal bob to a length of spring and dropping it from a certain height and measuring the time it takes to complete an oscillation‚ changing a variable for each of my preliminary investigations. Independent Variable | Dependent Variable | Control Variables | Length of String (continuous) | Period of the pendulum (continuous) | Diameter of Bob | | | Type of Bob |
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_____________________________________________ Teacher: _________________ Direction: Read the following then answer correctly. Write your answer & solutions on a separate answer sheet. A. True or False. ______1. The area of a triangle equals one-half the product of two of its side lengths and the sine of the angle. ______2. Given only the three sides of a triangle‚ there is insufficient information to solve the triangle. ______3. Given two sides and the included angle‚ the first thing to do to solve the triangle is to use the Law
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Purpose: To measure the speed of sound in air using a variable length column of air. Apparatus: resonance-tube apparatus (an open ended tube which can be moved in and out of a container of water) constant frequency source (tuning fork or computer generated tone) rubber hammer meter stick rubber stopper Procedure: 1. Set Up the Experiment: Place the open ended tube into the water‚ and verify that it can produce a resonance tube length within the limits set by your instructor. Confirm that
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week babysitting. Evaluate each expression for the given values of the variables. 3. 2(3e ( 5f) + 3(e2 + 4f); e = 3 and f = (5 Surface Area The expression 6s2 represents the surface area of a cube with edges of length s. What is the surface area of a cube with each edge length? 4. 3 inches The expression 4.95 + 0.07x models a household’s monthly long-distance charges‚ where x represents the number of minutes of long-distance calls during the month. What are the monthly charges for each
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does this equate to? Approximately 50 football fields 3. Measure the length‚ width‚ area and volume of your computer screen (in meters) and report your measurements in the space below. L=.36m W=.24m A=.086m² V=.086m³ 4. Measure the length‚ width‚ area and volume of a 100 mL beaker (in millimeters) and report your measurements in the space below. L= 80mm W=70mm A=5600mm² V=3920.0mm³ 5. Measure the length‚ width‚ area and volume of your lab kit box lid (in centimeters) and report
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