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Hey There!</h2><h2>
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Answer:</h2>
<h2>_____________________________________</h2><h3>ENDOTHERMIC REACTIONS:</h3>
Endothermic Reaction are those reactions in which the reactants absorb the energy from their surrounding and forms the product.
<h2>_____________________________________</h2><h3>How to know endothermic reaction?</h3>
Those changes in which a substance goes from More-ordered state to less-oredered state are endothermic. Where they change from less ordered to more ordered is exothermic.
More ordered means that the movement of vibration of the particles of the substance is less and the are more close to each other. More to less ordered state is given as,
Solid>Liquid>Gas.
<h2>_____________________________________</h2><h2>Question:</h2>
In the question it asks about the melting of the ice cube. Ice cube is a solid, and when it will melt, it will change into the liquid water. As we know that, Solid is more ordered and Liquid is less ordered, and The change from more-ordered to less-ordered is endothermic thus the answer is ENDOTHERMIC.
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Best Regards,</h2><h2>
'Borz'</h2><h2>
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It seems that you have missed the necessary options for this question, but anyway the correct answer for this would be FALSE. It is not true that when a bullet is fired, gunpowder only travels back towards the shooter. Though gunpowder residue can remain on the shooter's hand for a few hours. Hope this answer helps.
As momentum / time = force
so; time = 100÷15
so your answer is 6.7 !!
Physics contributes to the technological infrastructure and provides trained personnel need to take advantage of scientific advances and discoveries.
Physics is an important element in the education of chemists, engineers and computer scientists as well as practitioners of the other physical and biomedical sciences .