What is the formula for the weight of a fluid block?

In summary, the weight of a fluid block is affected by its density, volume, and gravitational force. Changes in any of these factors can result in a change in weight. The density of a fluid directly affects the weight of the block, with a higher density resulting in a higher weight. The weight of a fluid block can change if there is a change in its density, volume, or gravitational force. Additionally, the weight of a fluid block is directly proportional to its volume, meaning that an increase in volume will result in an increase in weight.
  • #1
werson tan
183
1

Homework Statement


why the formula of weight of fluid block is given by the formula of ρg[ (R^2) - pi(R^2) ] 1?

what does the 1m mean here ?
shouldn't it = ρg (pi) (R^2) h ?
2. Homework Equations

The Attempt at a Solution

 

Attachments

  • IMG_20160225_174658[1].jpg
    IMG_20160225_174658[1].jpg
    58.3 KB · Views: 375
  • IMG_20160225_174727[1].jpg
    IMG_20160225_174727[1].jpg
    34.3 KB · Views: 362
Physics news on Phys.org
  • #2
It's a square minus a quarter circle. ##W## is the weight of 1 m length (i.e. into the paper) of the area shaded grey in the right picture in Fig 3-36.
 
  • Like
Likes werson tan

1. What is the weight of a fluid block?

The weight of a fluid block is affected by its density, volume, and gravitational force. It can be calculated using the formula: Weight = Density x Volume x Gravitational Force (W = ρ x V x g).

2. What factors affect the weight of a fluid block?

The weight of a fluid block is influenced by its density, volume, and the strength of the gravitational force. Changes in any of these factors will result in a change in weight.

3. How does the density of a fluid affect the weight of a fluid block?

The density of a fluid directly affects the weight of a fluid block. A higher density will result in a higher weight, while a lower density will result in a lower weight.

4. Can the weight of a fluid block change?

Yes, the weight of a fluid block can change if there is a change in its density, volume, or gravitational force. For example, if the volume of the block is increased, its weight will also increase.

5. What is the relationship between the weight of a fluid block and its volume?

The weight of a fluid block is directly proportional to its volume. This means that if the volume of the block increases, its weight will also increase proportionally.

Similar threads

  • Introductory Physics Homework Help
Replies
6
Views
2K
Replies
10
Views
465
  • Introductory Physics Homework Help
Replies
8
Views
767
  • Introductory Physics Homework Help
Replies
4
Views
1K
  • Introductory Physics Homework Help
Replies
2
Views
837
  • Introductory Physics Homework Help
Replies
10
Views
1K
  • Introductory Physics Homework Help
Replies
9
Views
2K
  • Introductory Physics Homework Help
Replies
1
Views
2K
  • Introductory Physics Homework Help
Replies
5
Views
890
  • Introductory Physics Homework Help
Replies
11
Views
1K
Back
Top