if a force of 10 newton (F = 10 N) acts along point that travels 2 meters (d = 2 m)‚ then it does the work W = (10 N)(2 m) = 20 N m = 20 J. This is approximately the work done lifting a 1 kg weight from ground to over a person’s head against the force of gravity. Notice that the work is doubled either by lifting twice the weight the same distance or by lifting the same weight twice the distance. Examples: Force is measured in newton’s (N) Distance is measured in meters (M) Work done is measured
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THE WORK DONE BY A CONSERVATIVE FORCE ALWAYS HAS FOUR PROPERTIES: 1. It can be expressed as the difference between the initial and final values of a potential-energy function. 3. It is independent of the path of the body and depends only on the starting and ending points. 2. It is reversible. 4. When the starting and ending points are the same‚ the total work is zero. The total mechanical energy ME = K + U is constant. Object moving in a uniform gravitational field gravitational a
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which cell has the larger resting membrane potential? Explain. If the permeability to K is higher in A than in B‚ then the resting membrane potential (rmp) will be closer to the equilibrium potential in cell A‚ which means the rmp will be more negative in cell A than in cell B; or in other words‚ the potential difference will be LARGER in cell A. 2. Predict the effect of a reduced extracellular concentration of Na+ on the magnitude of the action potential in an electrically excitable cell. If there
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Rick Adam and John Knudsen founded Adam Aircraft Industries (AAI) in the year 1988. AAI is an aircraft manufacturer company and it produces aircraft for civil and government markets. Adam Aircraft is situated in the South of Denver‚ Colorado at Centennial Airport (KAPA). AAI provides a variety of general aviation aircraft‚ which includes the centerline thrust twin-engine Adam A500 and A700 twin-engine personal jet. Need Rick realized that most of the aircraft at that time were based on old designs
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One of my weaknesses is being a charismatic leader‚ most of the employees say that if I leave the insurance agency it would fall apart. Sometimes I feel as though I can do no wrong and I am to important to the agency to be let go. I need to cross train more‚ I am the only person in the agency that is an expert in manufacturing risks and the only person that is an expert in surety bonds. This puts the agency in a very volnerable situation and if I should be removed or leave the agency it would be
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are spaced 1.0 m apart. Which of the following is closest to the fundamental wavelength that can exist on this wire? A B C D E 5. 0.25 m 0.50 m 1.0 m 2.0 m 4.0 m A thin converging lens of focal length 20 cm is used to shape light from a lamp filament into a parallel beam. Which of the following is closest to the required distance between the lamp filament and the lens? A B C D E 5.0 cm 10 cm 20 cm 40 cm 80 cm 2 6. A metallic sphere of radius 1.0 cm is charged
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Strengths and Weaknesses Throughout my life‚ my strengths and weaknesses have become more clearer as I have become older. Although we all describe our strengths as positive attributes‚ and our weaknesses as negative attributes‚ they are what makes us who we are as individuals. My strengths are important to consider in my overall personality and the way I relate to people. An important strength in my character is my ability to communicate. I find it easy for me to communicate well with others
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crimes that have been committed for specific periods of time. Those data sources include surveys that are used that gather data from individuals or households and there are reports that gather data from crimes committed and reported. It is important to understand that not all surveys and reports gather all the same information. Also‚ there are strengths and weaknesses to all the surveys and reports that are conducted‚ therefore‚ there is not one that is perfect. One report that is used measure
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Personal Strengths and Weaknesses Throughout my life‚ my strengths and weaknesses tend to gain more clarity‚ as I grew older. When I was younger‚ I did not focus too much on this part of myself. I must now use my strengths to improve my habits and my weaknesses to strengthen my faults. Several of my strengths are centered on my profession because the majority of my time is spent there. Some of my qualities are beneficial to different situations‚ while the other qualities hinder. Although we describe
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Contribution: The research conducted has several strengths and weaknesses to be addressed. To begin‚ I believe that the following areas within the article could be altered: population studied‚ position of camera‚ time workers have to adapt and adopt implementation‚ employees observed working with residents‚ and a larger sample size. The following areas could be added: definitions of topics‚ a controlled group‚ and observation of long-term effects of the programs. Finally‚ the following areas should
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