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Ramesh Jaiswal

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  1. Asked: March 15, 2024In: Class 9 Science

    What is the fundamental concept used to measure the speed of work done by machines?

    Ramesh Jaiswal
    Added an answer on March 18, 2024 at 8:36 am

    The fundamental concept used to measure the speed of work done by machines is power, which quantifies the rate at which work is accomplished or energy is transferred.

    The fundamental concept used to measure the speed of work done by machines is power, which quantifies the rate at which work is accomplished or energy is transferred.

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  2. Asked: March 16, 2024In: Class 9 Science

    Under what condition would the work done on an object by a force be zero?

    Ramesh Jaiswal
    Added an answer on March 18, 2024 at 8:35 am

    The work done on an object by a force would be zero if the force applied and the displacement of the object are perpendicular to each other. In this case, there is no component of the force parallel to the displacement, resulting in zero work done.

    The work done on an object by a force would be zero if the force applied and the displacement of the object are perpendicular to each other. In this case, there is no component of the force parallel to the displacement, resulting in zero work done.

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  3. Asked: March 16, 2024In: Class 9 Science

    Can you provide an example where calculating average power is beneficial?

    Ramesh Jaiswal
    Added an answer on March 18, 2024 at 8:35 am

    Calculating average power is beneficial in analyzing the energy consumption of appliances over time. For instance, determining the average power usage of a refrigerator over a month allows homeowners to estimate energy costs accurately and identify opportunities for energy efficiency improvements orRead more

    Calculating average power is beneficial in analyzing the energy consumption of appliances over time. For instance, determining the average power usage of a refrigerator over a month allows homeowners to estimate energy costs accurately and identify opportunities for energy efficiency improvements or cost savings.

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  4. Asked: March 16, 2024In: Class 9 Science

    Can sound be produced without utilizing energy?

    Ramesh Jaiswal
    Added an answer on March 18, 2024 at 5:44 am

    No, sound production inherently requires energy. Vibrating objects or sources, such as vocal cords, drums, or speakers, must expend energy to create mechanical disturbances in a medium, initiating sound waves. Even in natural phenomena like earthquakes or thunder, energy is transferred to the surrouRead more

    No, sound production inherently requires energy. Vibrating objects or sources, such as vocal cords, drums, or speakers, must expend energy to create mechanical disturbances in a medium, initiating sound waves. Even in natural phenomena like earthquakes or thunder, energy is transferred to the surrounding medium, causing vibrations that generate sound. Therefore, sound production is always accompanied by the utilization of energy.

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  5. Asked: March 16, 2024In: Class 9 Science

    State the law of conservation of energy and its implication.

    Ramesh Jaiswal
    Added an answer on March 18, 2024 at 5:44 am

    The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another. This principle implies that in any process, the total energy remains constant. Consequently, energy must be accounted for in all physical phenomena, serving as a fundamentaRead more

    The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another. This principle implies that in any process, the total energy remains constant. Consequently, energy must be accounted for in all physical phenomena, serving as a fundamental principle governing the behavior of energy in various systems and processes.

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