Identify the solution(s) of the system of equations‚ if any. -4x - 2y = 12 6y = -12x - 36 Hint X no solution (0‚ -3) (-3‚ 0) infinitely many solutions 5. Identify the solution(s) of the system of equations‚ if any. x + 5y = 5 4x - 5y = 0 Hint X (1‚5/4 ) (1‚ 4/5) (5/4‚ 1) (4/5‚ 1) 6. Identify the solution(s) of the system of equations‚ if any. 6x + 2y = 8 y = 5 - 5x Hint X (2.5‚ –0.5) (2.5‚ 0.5) (–0.5‚ 2.5) (0.5‚ 2.5) 7. Identify the solution(s) of the
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Potato Diffusion Lab Hypothesis:________________________________________________________________________ __________________________________________________________________________________ Materials Aprons/Goggles Potato Slice (2-3cm thick) Potato Borer Triple beam balance 6 x 100mL beakers plastic wrap Paper towel 50mL Distilled Water 50mL 0.2M Sucrose solution 50mL 0.4M Sucrose solution 50mL 0.6M Sucrose solution 50mL 0.8M Sucrose solution 50mL 1.0M Sucrose solution Procedure
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NETW320 -- Converged Networks with Lab Lab # 2 Title: Silent Suppression – Cont. Procedure Start OPNET IT Guru Open the scenario 1. Select File/Open. 2. Select Project. 3. Open your f: drive. (Note: If you don’t see drive F: listed‚ you click on “My Computer or “Computer” first.) 4. Open your op_models directory. 5. Open your NETW 320 directory. 6. Open the Lab1_Silent.project folder. 7. Click on Lab1_Silent.prj. 8. Click OK. The project should open. 9. Choose
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Lab Report: Purpose: The Objective of this lab was to learn how to measure the pH (or acidity) of commonly known fluids‚ using the correct tools and procedures. To then use that data to document the changes noticed when mixing those same fluids and changing their respective pH levels. Materials: In order to conduct this experiment several pieces of equipment and other materials were needed. The first item was a graduated cylinder‚ which was used in order to measure out the precise
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Use 10mL pipette to slowly add KMnO4 until solution turns persistent pink or brown color 7. Repeat Steps 1-6 for time intervals of 30‚60‚ 120‚ 180‚ and 360 seconds Test of Catalase Activity 1. Cut 1mL (cm3) of potato and macerate it. 2. Prepare 50mL glass beaker with 10mL of H2O2 3. Place 1mL potato into glass beaker and record results 4. Repeat step 2 5. Place boiled 1mL of boiled potato into 50mL beaker of solution Data KMnO4(mL) | Time(seconds) |
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Osmosis Design Lab November 19‚ 2011 Biology Defining the Problem and Selecting the Variables Research Question: What will happen to mass of the cell when it is placed in different solutions while trying to reach equilibrium? Background Information Osmosis is the procedure where water or different types of liquids move through a semipermeable membrane. This type of passage is considered as simple diffusion where no energy is required. This means that the liquid will have
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CHAPTER 17 SPONTANEITY‚ ENTROPY‚ AND FREE ENERGY Questions 11. Living organisms need an external source of energy to carry out these processes. Green plants use the energy from sunlight to produce glucose from carbon dioxide and water by photosynthesis. In the human body‚ the energy released from the metabolism of glucose helps drive the synthesis of proteins. For all processes combined‚ ∆Suniv must be greater than zero (the second law). 12. Dispersion increases the entropy of the universe because
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Tyler Cowan Professor Foltz Biology 181 April 8th 2015 Lab Report: Respiration Abstract: The objective of this lab was to figure out which has a higher cell respiration rate between crayfish and elodea. In order to figure this out we first set up three beakers to represent our control‚ elodea and crayfish and filled them with 75mL of culture solution which were dechlorinated making the solution acidic. We then had to place both the elodea and the crayfish in separate beakers filled with 25mL of
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BUFFERS By: Luis P. Bazan‚ RPh.‚ Ph.D. A buffer solution is a solution of: 1. A weak acid or a weak base and 2. The salt of the weak acid or weak base Both must be present! A buffer solution has the ability to resist changes in pH upon the addition of small amounts of either acid or base. Consider an equal molar mixture of CH3COOH and CH3COONa CH3COOH (aq) H+ (aq) + CH3COO- (aq) Adding more acid creates a shift left IF enough acetate ions are present 16.3 Which of the
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in the rope (tension) is 94.0N. How much work is done on the sled? Solution: W= Fd W= 94.0N x 35.0m W= 3290 Nm or J 2. The cable of a large crane applies a force of 2.2x10^4N to a demolition ball as it lifts it vertically a distance of 7.6m. a) How much work is done on the ball? b) Is the work positive or negative? Why? Solution: A.) W=( 2.2x10^4N) ( 7.6 m) W= 1.6x10^5 Nm or J B.) Positive‚ because the force on the system is positive
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