The pressure on a fluid at rest in a pipe increases by 20 Pa. How does this change in pressure affect the pressure on the fluid in the rest of the pipe?

a.The pressure on all the fluid in the pipes increases by more than 20 Pa because the amount of pressure adds up on the rest of the fluid in the pipes.
b.The pressure on all the fluid in the pipes increases by up to 20 Pa because pressure will increase on all the fluid but by different amounts.
c.The pressure in the rest of the fluid stays the same because the pressure only increased in one area and that does not affect the rest of the fluid.
d. The pressure on all the fluid in the pipes increases by 20 Pa because fluid pressure is transmitted undiminished to all points in the fluid.
i know its not b. please help!

To understand how a change in pressure affects the rest of the fluid in a pipe, we need to consider Pascal's principle. Pascal's principle states that when pressure is applied to a confined fluid, the pressure change is transmitted undiminished to all points in the fluid and to the walls of the container.

In this scenario, the pressure on a fluid at rest in a pipe increases by 20 Pa. According to Pascal's principle, this increase in pressure will be transmitted undiminished to all points in the fluid. Therefore, the correct answer is option (d) "The pressure on all the fluid in the pipes increases by 20 Pa because fluid pressure is transmitted undiminished to all points in the fluid."

Pascal's principle explains that when pressure is applied to a fluid in a closed system, such as a pipe, that change in pressure will be equally experienced by all parts of the fluid, including the areas outside the initial pressure change. So, even though the initial change was only 20 Pa, all the fluid in the pipes will experience an increase in pressure of 20 Pa.

The fluid is not moving. Imagine air in a tire. Put more in. It might move around as you squirt it in, but when it settles down it is all the same again except for the effect of gravity but even if you allow for gravity the change is the same everywhere.