Water hydro statics and presure

In summary, the conversation discusses an upside down cone frustum with dimensions given for the radius of the larger circle (R), radius of the smaller circle (r), and height (h) of the object. The volume of the shape is calculated using the formula (πh/3)×(R^2+Rr+r^2), which equals 21.99114858 m^3. The question is then posed about the pressure of water at the bottom of the object if it were to be filled. The conversation ends with a reminder to post homework problems in the appropriate forum and a prompt for the principles and equations related to pressure in a liquid that the person has learned.

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  • #1
Robin Murphy
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hey guys. bellow is an upside down cone frustum with the dimensions given bellow where the green R is the radius of the larger circle and the blue r is the radius of the smaller circle and the red h to be the height of the object
upload_2015-3-29_18-8-23.png

knowing that volume of this shape is calculated as (πh/3)×(R^2+Rr+r^2) = 21.99114858 m^3
if this object were to be filled with water then what would be the pressure of the water at the bottom of the object?
 
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  • #2
Please post your HW problems in the appropriate HW forum, after filling out the HW template.

The Academic Guidance forum is not intended for posting HW threads.
 
  • #3
Robin Murphy said:
hey guys. bellow is an upside down cone frustum with the dimensions given bellow where the green R is the radius of the larger circle and the blue r is the radius of the smaller circle and the red h to be the height of the object
View attachment 81182
knowing that volume of this shape is calculated as (πh/3)×(R^2+Rr+r^2) = 21.99114858 m^3
if this object were to be filled with water then what would be the pressure of the water at the bottom of the object?
What equations and principles have you been taught relating to pressure in a liquid?
 

1. What is hydrostatic pressure?

Hydrostatic pressure is the pressure exerted by a fluid at rest due to the weight of the fluid above it.

2. How does the density of water affect hydrostatic pressure?

The density of water directly affects hydrostatic pressure, as more dense fluids exert more pressure. This is why deeper parts of the ocean experience higher hydrostatic pressure than shallow areas.

3. What is the equation for calculating hydrostatic pressure?

The equation for calculating hydrostatic pressure is P = ρgh, where P is pressure, ρ is density, g is acceleration due to gravity, and h is the height of the fluid column.

4. How is hydrostatic pressure important in everyday life?

Hydrostatic pressure plays a crucial role in many everyday activities, such as drinking from a straw, using a hydraulic lift, and even breathing. It also helps to maintain the shape and stability of objects like dams and submarines.

5. What is the difference between hydrostatic pressure and atmospheric pressure?

Hydrostatic pressure is the pressure exerted by a stationary fluid, while atmospheric pressure is the pressure exerted by the Earth's atmosphere. Hydrostatic pressure increases with depth, while atmospheric pressure decreases with altitude.

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