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
Premium Potential energy Electric charge Force
Potential Energy • Definition and Mathematics of Work • Calculating the Amount of Work Done by Forces • Potential Energy • Kinetic Energy • Mechanical Energy • Power An object can store energy as the result of its position. For example‚ the heavy ball of a demolition machine is storing energy when it is held at an elevated position. This stored energy of position is referred to as potential energy. Similarly‚ a drawn bow is able to store energy as the result of its position. When assuming
Premium Potential energy Energy Kinetic energy
Redox potential – CV Acetonitrile Adjusted sensitivity Each ;line represents diff scan rates all been overlayed on one digarm Scan rates ranged from 0 .1 s-1 to 1 Peak due to iodide oxidation is read from +peak to – peak bottom line. Iodide to triiodide Glycol Didn’t work Using equation ip = 2.69 ×105 n3/2 A D1/2 C ν1/2 compare to linear equation y = mx+c y = peak current x = V1/2 c = zero Therefore m is = everything else C = concentration 0.05 M ethylene glycol (acetonitrile
Premium Electrochemistry
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
Premium Force Speed Voltage
Your Products’ Hidden Potential by Ian C. MacMillan and Rita Gunther McGrath A simple matrix helps you identify the attributes that will make your goods and services most competitive. Why did a minor math error that would occur only once every 27‚000 years so enrage customers that it briefly threatened to derail Intel’s Pentium chip? And how could a feature as trivial as an inexpensive cup holder swing millions of customers to purchase a $17‚000 automobile—particularly when only three years later
Premium Product management Attribute Customer
this experiment was to examine how the compound action potentials propagate down the sciatic nerve of a frog based on varying stimuli. Before the nerve could be tested it needed to be extracted from the thigh of the frog and then submerged in saline. Several varying stimuli were used and recorded by a software package. The second experiment requires a constant stimulus with varying reference pin locations. From this the velocity of the action potential propagated can be determined. The experiment revealed
Premium Nerve Action potential Axon
Water Potential Teacher: What is the formula for water? Student: H‚ I‚ J‚ K‚ L‚ M‚ N‚ O Teacher: That’s not what I taught you. Student: But you said the formula for water was...H to O. Prepared by Lower concentration of solute Water potential – the ability of water move out of the solution through osmosis. Solute molecule Equal concentration of solute Higher concentration of solute H2O Selectively permeable membrane Water molecule Solute molecule with cluster of water molecules Net flow
Premium Osmosis Water
1) 2) 3) Natural resources and their role in the global economy: the mineral‚ energy‚ land‚ forest‚ water resources Human resources of the world economy and labor migration Scientific and technical resources and information resources 1) 2) 3) 4) 5) 6) 7) By Consumption and resilience: exhaustible non-renewable exhaustible renewable inexhaustible As belonging to the natural environment: Lithosphere resources: minerals land
Premium Ore Water Natural resource
elevator is moving at a constant velocity upwards. | | | Your diet is working. | | | The elevator is accelerating upwards. | | | | | | Question 2 | 1.61 points | Save | | Tidal friction caused by the earth’s stretching from the Moon’s gravity is gradually slowing down the rotation of the earth. | | | | | | | True | | False | | | | | | Question 3 | 1.61 points | Save | | If your mass is 60 kg on Earth‚ what would your mass be on the Moon
Premium Potential energy Moon Energy
examples of work done=force x distance What is work? Work in physics is the transfer of energy; work is done on an object when an applied force moves it through a distance. The link between work and energy is work done equals energy transferred. The units for the two are also the same (joules). E.g. 500J of work = 500J of kinetic energy. Work is calculated with the formula: work done=force x distance moved For example‚ if a force of 10 newton (F = 10 N) acts along point that travels 2 meters
Premium Potential energy Energy Mass