Name some organisms found in the space created in between the highest water level in high tide and the highest water level during low tide.

A hemi-spherical tank of radius 2 m is initially full of water and has an outlet of 12c m^2 cross-sectional area at the bottom. The outlet is opened at some instant. The flow through the outlet is according to the law v(t)=0.6sqrt(2gh(t)), where v(t) and h(t) are, respectively, the velocity of the flow through the outlet and the height of water level above the outlet and the height of water level above the outlet at time t , and g is the acceleration due to gravity. Find the time it takes to empty the tank.

Shellfish taken from water during a red tide would be

There is some mercury in a U-tube. Water is poured into one of its arms and kerosene into the other. When the heights of the water and the kerosene oil are 4cm and 5cm respectively, the level of mercury in both the arms becomes the same. Calculate the density of kerosene oil.

Shell Fish taken from water during a red tide would be

A uniform capillary tube of length l and inner radius r with its upper end sealed is submerged vertically into water. The outside pressure is p, and surface tension of water is gamma . When a length x of the capillary is submerged into water, it is found that water levels inside and outside the capillary coincide, the value of x is

A man is sitting on a boat in a pond. If the man drinks some water from the pond, the level of water in the pond