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Q1. The heat of vaporization of ethyl alcohol is about 200 cal/g. If 2.3 kg of it were allowed to vaporize in a refrigerator, how many grams of ice will be formed from 0°C water?

Q2. You are in a nightmare in that you are in a slow-moving truck being chased by a dinosaur in that infamous scene from "Jurassic Park". Though, you did have the presence of mind to have installed a flat rear-view mirror so as to get an accurate impression of the distance of things chasing you. This mirror is 175 mm tall and is 0.900m from your eyes while you are driving. If an image of the dinosaur is just filling the mirror upright, what is the distance of the dinosaur from your mirror (in meters) if the dinosaur is, in fact, 16.00 m tall.

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  • Category:- Physics
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