MCAT Question of the Day
    •

    Q:

    		 A child playing in a river holds two identical rocks under the water. One of the rocks is held just beneath the surface and the other is held two feet under the surface. Compared to the force required to hold the first rock in place, how much force is needed to hold the second rock in place?
    		 

    A

    		 Half the force

    B

    		 Zero force, since the rock isn't influenced by surface tension

    C

    		 The same force

    D

    		 Twice the force



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