A system is a group of objects that’s analyzed as one unit. Consider a car moving along a road that has a flat section and a hill. The energ

Question

A system is a group of objects that’s analyzed as one unit. Consider a car moving along a road that has a flat section and a hill. The energy of the car at any given time is equal to the energy that its engine provides minus the energy that the car. When the car moves along the flat section, all of its energy is , which is calculated from its velocity and . When the car moves uphill, some of its energy is transformed to , which is calculated from its gravity, height, and .

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Thái Dương 1 month 2021-08-16T03:07:49+00:00 2 Answers 2 views 0

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    0
    2021-08-16T03:09:01+00:00

    Answer:

    a) Em= K +U,  b) Em= K

    Explanation:

    The system in this case is formed by the mobilizes and the hill.

    Let’s write the expressions correctly and completely.

    a) When the car moves in the path, the mechanical energy is the siua of the kinetic energy of the car and the potential energy of the car when going up the hill.

                  Em = K + U

    be) when the car moves in the flat part all the mechanical energy is formed by its kinetic energy that is calculated with the mass and speed of the car

                 Em = K

    c) When the car goes up the hill the energy the mechanical energy is conserved, but part of the kinetic energy is transformed into potential energy.

    0
    2021-08-16T03:09:31+00:00

    Answer:

    leaves

    kinetic energy

    mass

    potential energy

    mass

    Explanation:

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