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- https://phys.libretexts.org/Courses/Joliet_Junior_College/Physics_201_-_Fall_2019v2/Book%3A_Custom_Physics_textbook_for_JJC/08%3A_Work_and_Energy/8.22%3A_PowerIn physics, power is the rate of doing work—the amount of energy consumed per unit time.
- https://phys.libretexts.org/Courses/Joliet_Junior_College/JJC_-_PHYS_110/05%3A_Book-_Physics_(Boundless)/5.04%3A_Work_and_Energy/5.4.06%3A_PowerIn physics, power is the rate of doing work—the amount of energy consumed per unit time.
- https://phys.libretexts.org/Bookshelves/University_Physics/Physics_(Boundless)/6%3A_Work_and_Energy/6.6%3A_PowerIn physics, power is the rate of doing work—the amount of energy consumed per unit time.
- https://phys.libretexts.org/Courses/Prince_Georges_Community_College/PHY_2040%3A_General_Physics_III/01%3A_Waves_and_Vibrations/1.5%3A_WavesWave motion transfers energy from one point to another, usually without permanent displacement of the particles of the medium.
- https://phys.libretexts.org/Courses/Coalinga_College/Physical_Science_for_Educators_(CID%3A_PHYS_14)/11%3A_Electricity/11.03%3A_Static_Electricity/11.3.01%3A_Electric_Charge_and_Electric_ForceWhen a negatively charged object is brought near the knob of a neutral electroscope, the negative charge repels the electrons in the knob, and those electrons move down the stem into the leaves. If th...When a negatively charged object is brought near the knob of a neutral electroscope, the negative charge repels the electrons in the knob, and those electrons move down the stem into the leaves. If the electroscope has been permanently negatively charged, and a negatively charge object is brought near the knob, the leaves will separate even further, showing the new object has the same charge as the leaves.
- https://phys.libretexts.org/Courses/Prince_Georges_Community_College/PHY_1030%3A_General_Physics_I/06%3A_Work_and_Energy/6.6%3A_PowerIn physics, power is the rate of doing work—the amount of energy consumed per unit time.
- https://phys.libretexts.org/Courses/Joliet_Junior_College/Physics_201_-_Fall_2019/Book%3A_Physics_(Boundless)/07%3A_Work_and_Energy/7.05%3A_PowerThe concept of work involves force and displacement; the work-energy theorem relates the net work done on a body to the difference in its kinetic energy, calculated between two points on its trajector...The concept of work involves force and displacement; the work-energy theorem relates the net work done on a body to the difference in its kinetic energy, calculated between two points on its trajectory. None of these quantities or relations involves time explicitly, yet we know that the time available to accomplish a particular amount of work is frequently just as important to us as the amount itself.
- https://phys.libretexts.org/Courses/Muhlenberg_College/MC%3A_Physics_121_-_General_Physics_I/08%3A_Work_and_Kinetic_Energy/8.05%3A_PowerThe concept of work involves force and displacement; the work-energy theorem relates the net work done on a body to the difference in its kinetic energy, calculated between two points on its trajector...The concept of work involves force and displacement; the work-energy theorem relates the net work done on a body to the difference in its kinetic energy, calculated between two points on its trajectory. None of these quantities or relations involves time explicitly, yet we know that the time available to accomplish a particular amount of work is frequently just as important to us as the amount itself.
- https://phys.libretexts.org/Courses/University_of_California_Davis/UCD%3A_Classical_Mechanics/3%3A_Work_and_Energy/3.6%3A_Mechanical_Advantage_and_PowerWe will now take a closer look at simple machines from the perspective of work-energy, and discuss the rate at which work is performed.
- https://phys.libretexts.org/Courses/Coalinga_College/Physical_Science_for_Educators_(CID%3A_PHYS_14)/11%3A_Electricity/11.05%3A_Electric_Circuits/11.5.04%3A_Parallel_CircuitsThe amount of water flowing in the river is equal to the sum of the amounts of water flowing in the individual streams. If we divide both sides of the final equation by V T , we get the relationship b...The amount of water flowing in the river is equal to the sum of the amounts of water flowing in the individual streams. If we divide both sides of the final equation by V T , we get the relationship between the total resistance of the circuit and the individual parallel resistances in the circuit. The total current through the circuit would be the sum of the three currents in the individual resistors.
- https://phys.libretexts.org/Bookshelves/College_Physics/College_Physics_1e_(OpenStax)/25%3A_Geometric_Optics/25.06%3A_Image_Formation_by_LensesLight rays entering a converging lens parallel to its axis cross one another at a single point on the opposite side. For a converging lens, the focal point is the point at which converging light rays ...Light rays entering a converging lens parallel to its axis cross one another at a single point on the opposite side. For a converging lens, the focal point is the point at which converging light rays cross; for a diverging lens, the focal point is the point from which diverging light rays appear to originate. The distance from the center of the lens to its focal point is called the focal length f. Power P of a lens is defined to be the inverse of its focal length, P=1f.
