A block of mass \( 0.50 \mathrm{~kg} \) is moving with a speed of \( 2.00 \mathrm{~m} / \mathrm{...

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A block of mass \( 0.50 \mathrm{~kg} \) is moving with a speed of \( 2.00 \mathrm{~m} / \mathrm{s} \) on a smooth surface. It strikes another mass of \( 1 \mathrm{~kg} \) at rest and they move as a single body. The energy loss during the collision is
(A) \( 0 \cdot 16 \mathrm{~J} \)
(B) \( 1.00 \mathrm{~J} \)
(C) \( 0.67 \mathrm{~J} \)
(D) \( 0.34 \mathrm{~J} \)
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