# Question #5fbd7

##### 1 Answer

The pressure at the bottom of the second glass is

#### Explanation:

Pressure is defined as *force* acting on unit area.

For the first glass, the difference between the pressure at the top, which is said to be **zero**, and the pressure on the bottom, which is *weight of the water*.

At the bottom of the glass, the weight of the water pushing upon the surface area of the glass causes a pressure equal to *cylinder*, then youcan write

*mass* of the water;

You can express the mass of the water by using its density and the volume of the cylinder.

In the case of a cylinder, you have

Therefore, the pressure at the bottom of the first glass can be written as

Now for the second glass. You know that the *diameter* of the glass doubles, which implies that the radius doubles , and that the height double as well, compared with the first glass.

The pressure at the bottom of the second glass will be