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10th Class Science Sources of Energy Question Bank Sources of Energy

  • question_answer
    Usha lifts a doll from the floor and places it on a table. If the weight of the doll is known, what else does one need to know in order to calculate the work Asha has done on the doll?

    A)  Time required

    B)  Height of the table  

    C)  Mass of the doll

    D)  Cost of the doll

    Correct Answer: B

    Solution :

    Not Available


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