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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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
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Electric Incandescent Light Bulb Until just over a century ago‚ man had two sources for light: the Sun and fire. This all changed with the development of the electric light. The light bulb changed the world immensely. No longer does the world comprise of barbaric people who lived in the dark but a civilized culture who have light at their fingertips. This paper will study in depth the production process‚ the disposal‚ and future of the incandescent light bulb. The origins of the electric
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live without them. Thomas Edison’s light bulb has been one of the biggest impacts on society even to this day. Thomas wanted to replace the gaslight with a mild‚ safe‚ and inexpensive electric light. Edison invented the light bulb in 1879‚ and to this day the light bulb is still just as useful‚ if not more so. As time has passed‚ the light bulb has grown more important with more and more functions. Just think about how many different types of light bulbs we have now... in civilized areas there is
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alternative light bulb which is designed to lessen the consumption of electricity Florescent light bulbs are oftenly used for light in houses But sometimes the light bulb became wrought and because we think electricity is too expensive‚ We create an alternative light bulb using everyday materials. In this experiment‚ we will try to replace light bulbs with alternatives and cheaper replacements. In this investigatory project the group will try to make a plastic bottle light bulb.
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POEM ANALYSIS In the poem “Monologue for an Onion” by Suji Kwock Kim‚ the onion metaphor is the centerpiece of the poem. The onion represents the poet‚ and the person she addresses (the reader assumes) is her lover. The onion metaphor is used to convey the message to this anonymous lover that she is by nature heartless and that he should stop trying to unearth a hidden core. The author is trying to dissuade her lover from further fruitless digging which only seems to cause him distress. The speaker
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Your rental property needs new occupants‚ so where find potential tenants. Before handing over the keys to the home‚ you need to make sure quality tenants are signing the lease. Besides the tenants‚ there are other things you need to keep in mind. Here are three things a property management company can help you avoid. The Unruly Tenant and the Eviction Process A terrible tenant is a landlord’s worst nightmare. Handling the daily tasks of being a landlord is stressful‚ but unruly tenants can make
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Action Potentials An action potential is the change in electrical potential associated with the passage of an impulse along the membrane of a muscle cell or nerve cell. An action potential occurs when a neuron sends information down an axon‚ away from the cell body. A threshold is the minimum amount of stimulation needed to start a neural impulse (you know‚ the electrical impulses that travel throughout your body carrying important information). Action potentials generated by neural impulses are
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Examination of Onion Epidermal Cells Requirements: Iodine solution HARMFUL Onion Distilled Water Apparatus: Microscope Microscope slides & cover slips Tile Knife Tweezers Pasteur Pipettes Assignment: I was given the onion once it had been chopped up on the tile‚ ready for me to peel back the skin I required using the tweezers. I then placed piece of onionskin onto the microscope slide‚ making sure there were no folds or creases‚ and put a drop of iodine onto the slide
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