Hole is

A large open tank has two holes in the wall. The top hole is a square hole of side L at a depth y from the surface of water. The bottom hole is a circular hole of radius R at a depth 4y from surface of water . If R=L//2 sqrt(pi) , find the correct graph. V_(1) and V_(2) are the velocities in top and bottom holes. Area of the square & curcular holes are a_(1) and a_(2)

A metal sheet with a cricular hole in heated. The hole

One can notice large holes in Swiss cheese . Which bacterium is responible for these holes . What are these holes due to ?

There is a hole in a metal disc . What happens to the size of the hole if metal disc is heated?

Two holes are made in copper plate. The plate is heated. The distance between the holes

There is a hole in a metal plate. Upon heating the plate, the diameter of the hole

Name the organism that causes large hole in Swiss cheese. How are these holes formed?