In Regnault's apparatus for measuring specific beat capcity of a solied, there is an intel and an inlet and an outlet in the sterm cahmober .The intel is near the top and the outlet is near the bottom .Why is it better than the opposite choice where the inlet is near bottom and the outlet is near the top ?

A ladders is more likely to slip when a person is near the top than when he is near the bottom. The friction between the ladder and floor decreases as he climbs up.

Water is filled to a height of 2.5 m in a container lying rest on a horizontal surface as shown in the figure. The bottom of the container is square shaped of side sqrt(3) and its top is open. There is a very small hole in the vertical wall of the container near the bottom. A small cap closes the hole. The hole gets opened when pressure near the bottom becomes more than 4 xx 10^(4) pascal a, What minimum acceleration can be given to the container in the positive x -direction so that the cap will come out of the hole? Assume water does not spill out of container when the container accelerates. Find the velocity of efflux as soon as the container starts moving with the acceleration calculated in part a. of the question.