MCQ
When an arrow is released from a bow, potential energy changes into kinetic energy.
- ATrue
- BFalse
- CAmbiguous
- DData insufficient
Explanation:
When an arrow is drawn back by a bow, the work done by us in stretching the bowstring gets stored at potential energy in the bow.
This potential energy of bow is transformed into kinetic energy when the bowstring is released and this gives kinetic energy to the arrow.
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$5 \times 10^{-5} /^{\circ} \mathrm{C}$ along the $\mathrm{x}$ -axis and $5 \times 10^{-6} /^{\circ} \mathrm{C}$ along the $y$ and the $z-$axis. If the coefficient of volume expansion of the solid is $\mathrm{C} \times 10^{-6} /^{\circ} \mathrm{C}$ then the value of $\mathrm{C}$ is