Salt+ ___ a) Oxygen b) Water c) Carbon d) Hydrogen 9. The PH of human blood is ___ a) 6.9 b) 7.4 c)4.8 d) 4.7 10. Copper is less reactive than___ a) Lead b) Zinc c) Platinum d) Both (a) and (b) 11. The atomic number of natural radioactive element is __ a) 82 c) Not defined d) at least 92 12. Kilowatt-hour is the unit of ___ a) Potential difference b) Electric power c) Electric energy d) Charge 13. The potential difference required to pass a current 0.2 A in a wire of resistance
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685N and your belongings have a weight of 915N. How much work does the elevator do in lifting you and your belongings 5 stories (15.2m)? Solution: W= (685N+915N) (15.2m) W= (1600N) (15.2m) W= 24‚320Nm or J Section 2 Gravitational Potential Energy: 6. A 0.15kg ball is thrown 9.0m straight up. What is the work done by the gravitational force? And what is the change in PE? (Notice anything?) Solution: PE= m*a*h PE= (0.15kg) (9.8 m/s^2) (9.0) PE= 13.23 kg m^2/s^2 or J - The
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Resting membrane potentials Definition: Large nerve fibers when not transmitting nerve signals is about 90 millivolt. That is‚ the potential inside the fiber is 90 millivolts more negative than the potential in the extracellular fluid on the outside of the fiber. The Na+-k+ pump also causes large concentration gradients for sodium and potassium across the resting nerve membrane. These gradients are the following: Sodium ( outside): 142 mEq/L Sodium ( inside): 14 mEq/L Potassium ( outside):
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Aim: What is the effect of changes in sucrose concentrations on the water potential of potato cells? Raw Data: Suscrose concentration (0.00M) Group 1 Group 2 Group 3 Group 4 Change in mass (g) (+/-0.1g) 0.04 0.19 0.10 -0.27 Change in length (mm) (+/- 0.1mm) 0.00 0.00 0.00 0.30 Suscrose concentration (0.10M) Group 1 Group 2 Group 3 Group 4 Change in mass (g) (+/-0.1g) 0.29 0.44 0.22 0.08 Change in length (mm) (+/- 0.1mm) 1.10 0.30 0.30 0.70
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Bio-fuel Industry in Pakistan Analysis of Pakistani Industries This report aims to present a detailed overview of biofuels and also aims to highlight the potential for developing bio-fuels based on the vast agricultural resources available to Pakistan. Omer Butt Institute of Business Administration‚ Karachi 12/29/2011 Preface This report aims at critically analyzing the Biofuels industry and the extent to which research is being conducted to develop biofuels that would be economically
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Potential Career Paths Career Information Career Path Option 1: Photographer Career Category: Artistic Career Path Option 2: Graphic designer Career Category: Artistic Job description (including daily responsibilities) Involves work such as taking pictures of weddings and family portraits‚ while others may specialize in a particular field such as fashion‚ advertising or clinical photography. Listening to clients and understanding their needs before making design decisions. Develop creative
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Danielle Ashworth Mr. Fletcher English 12 AP 18 February 2014 The Potential Destructiveness of Repetition Life is made up of routines and patterns. Every human being has their own unique system of how they carry themselves through the day. These systems are how we survive‚ and they tend to become part of our subconscious. But there are those who get so caught up in their own conformity that daily life becomes much more demanding than it should be. The results of this perpetual routine can
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POTENTIAL OF CIVIL SERVICE TRAINING SYSTEM: HUMAN RESOURCES DEVELOPMENT STRATEGY Eugenijus Chlivickas‚ Prof.‚ Dr. Vilnius Gediminas Technical University Training Centre of the Ministry of Finance of Republic of Lithuania Lithuanian Public Administration Training Association The beginning of the century brought plenty of reforms‚ changes and novelties into the sphere of public administration
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Maria Leonor Martínez Rengifo Professor Mercedes Peñalba García The One and The Many: A Short Story Composite 5th May‚ 2012 THE JOY LUCK CLUB This Short Story Composite is written by Amy Tan‚ an immigrant to the United States of Chinese origins‚ whose parents arrive in America in. In 16 short stories The Joy Luck Club is a blend of autobiography‚ fairy tale‚ religion‚ and history; a tale of Chinese families that immigrate to the United States leaving behind pains and
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Abstract: Water potential is the measure of free energy of water in a solution. The purpose of this lab was to find the water potential of a potato cell. The problem of this lab was‚ if there was a high molarity of solute‚ would it have a positive or negative water potential? The hypothesis of the experiment was‚ if there is a high molarity of solute then the water potential would be lower or negative. After obtaining potatoes‚ we cut them into pieces‚ weighed them‚ and then placed them in a solution
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