Which of the following is an example of work being done on an object? A-Water in a pot changes into steam. B-A man pushes a couc

Question

Which of the following is an example of work being done on an object?
A-Water in a pot changes into steam.
B-A man pushes a couch across the room.
C-A prism scatters ultraviolet light into visible light.
D-A box rests on the floor.

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Doris 4 weeks 2021-08-17T12:13:55+00:00 1 Answers 2 views 0

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    2021-08-17T12:15:38+00:00

    Answer:

    B

    Explanation:

    Work is defined as force x distance so a man pushing is the force and the couch moving is the distance

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )