EXERCISE 9 - Mechanical properties of solid and fluid mechanics 1. A stainless-steel wire of length 3.1 cm and a diameter of 0.22 mm. If it is stretched by 0.10 mm‚ find the tension of the wire. The Young’s modulus for stainless steel is 18 × 1010 Pa. 22 N 2. Determine the elongation of the rod i Figure 1 if it is under a tension of 5.8 × 103 N. Young’s Modulus: Copper‚ 11.0 x 1010 Nm-2‚ Aluminium 7.0 x 1010 Nm-2 1.9 cm 3. Air is trapped above liquid ethyl alcohol in
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punch‚ 10 spinach leaf disks were cut out for each cup. Each set of leaves were placed into two separate syringes. The plunger was replaced into the syringes and pushed in until only a small volume and air and leaf disked remained in the barrel (without damaging the leaf disks). Then‚ a small volume of the sodium bicarbonate plus soap water was pulled into the syringe. The plunger was then pulled even farther back‚ with one finger on the opening of the syringe‚ creating a vacuum. It was held for about
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What Factors Affect the Rate of Photosynthesis in living leaves? Abstract: In this lab‚ four different types of leaves were tested to see the rate at which each leaf photosynthesized. This lab demonstrates how plants store light‚ capture light‚ and use light as energy for reproduction and growth‚ by photosynthesis. The control in this experiment was spinach‚ which was tested before any of the other plants were. The other plants that were tested were English Ivy‚ C4 Plant‚ and a multicolored
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MODULE 6 Study Guide for Post Test 1. You are administering a flu vaccine to a patient. You perform hand hygiene‚ locate your site and swab with alcohol. You allow the alcohol to dry‚ uncap the needle and administer the injection. You dispose of the syringe and needle in the sharps container. Which of the following actions increased the risk for infection? A) You failed to cap the needle after the injection. Feedback: INCORRECT Clean gloves should be worn whenever administering an injection
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Research question : How does the different light intensity affect the rate of photosynthesis in plants? Objective : To investigate the relationship between different light intensity (by having the source of light at different distance to the plant discs which is at; 10cm‚ 15cm‚ 20cm‚ 25cm‚ 30cm‚ and 35cm ) and rate of photosynthesis of plant. Introduction : Photosynthesis is the process where light energy is absorbed by green plants to convert the raw materials (carbon dioxide and water) into
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LIGHT IN PHOTOSYNTHESIS Theory: Leaf discs float normally. When the air spaces are infiltrated with the solution the overall density of the leaf disc increases and the disc sinks. The infiltration solution includes a small amount of sodium bicarbonate. The bicarbonate ions serve as the carbon source for photosynthesis. As photosynthesis proceeds oxygen is released into the interior of the leaf which changes the buoyancy – causing the discs to rise. Since cellular respiration is taking place
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Executive summary Contents: 1. Introduction 2.0 Current design 2.1 Product Description 2.2 Applications 2.3 Value analysis 2.4 Product life cycle 2.5 Manufacturing method and materials 3.1 Re- Design 3.2 Value analysis 3.3 Design for manufacture 3.4 Design for assembly 3.5 Design for Dis-assembly 3.6 Design for sustainability 4.1 Conclusion References Appendix Executive Summary A blinder is a smooth maker which provides various services. It has different kind of
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Tom and jerry happy go ducky http://www.youtube.com/watch?v=4vGXWYZpw4I For the opening 30 seconds of the cartoon music is played in major key which is meant to make audience feel happy that they are watching the program‚ the motif is repeated but changed to keep the listener entertained during the opening credits. As the cartoon begins there is woodwind instrument which sounds like a flute playing a melody over a piano playing arpeggio this gives the impression of it being early morning as
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Name: Ranessa Dockery I.D #: 27100017 Course: Immunohematology Lab Instructor: Sala Randall Date: January 22‚ 2013 Lab #: 1 Title: Cell Washing Aim: To demonstrate quality assurance techniques in performing cell washing. Principle: Cell washing is a common procedure performed in the laboratory. This is a series of careful steps taken to wash red blood cells normally three times intermittently with centrifugation and decanting (Harmening 2012). The procedure serves to
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Energy 1. A man climbs on to a wall that is 5 m high and gains 2200 J of potential energy. What is the mass of the man? Given: Formula: h = 5 m m = PE/gh PE = 2200 J Solution: m = 2200 J / (9.8 m/s2 x 5 m) m = 49 kg 2. Calculate the kinetic energy of a 500 kg car travelling at 50 m/s. Given: Formula: m = 500 kg KE = mv2/2 v = 50 m/s Solution: KE = 500 kg x (50 m/s)2 / 2 KE = 625 000 J Power 3. Riley climbs a flight of stairs in 3 minutes. If he
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