How Do You Find the Density of a Cylinder?

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Homework Help Overview

The discussion revolves around finding the density of a cylinder, specifically addressing the formula for the volume of a cylinder and how it relates to density calculations. Participants are exploring the necessary parameters and formulas involved in this context.

Discussion Character

  • Exploratory, Conceptual clarification, Problem interpretation

Approaches and Questions Raised

  • Participants are attempting to recall the formula for the volume of a cylinder and its application in calculating density. There is confusion regarding the interpretation of the radius squared and the use of units such as liters. Some participants are questioning the need for additional information, such as the mass of the fluid within the cylinder.

Discussion Status

The discussion is ongoing, with participants sharing their understanding and seeking clarification on the formulas involved. Some guidance has been offered regarding the need for mass to calculate density, but there is no consensus on the exact approach to take.

Contextual Notes

There is a mention of a potential misunderstanding regarding the formula for volume and the interpretation of radius squared. Additionally, the context of the problem may involve a cylinder containing fluid, which raises questions about the mass needed for density calculations.

westside
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Im a senior high school now and I am so happy. I miss junior days esp. chemistry.
My problem right now is..hmm.. i forgot how to get the density of the cylinder

V=2\pir2h
thats the formula of the cylinder right?
and I am confuse..
r2=0.200m ->do i have to multiply it 2 times?

thanks you peeps :)
 
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westside said:
Im a senior high school now and I am so happy. I miss junior days esp. chemistry.
My problem right now is..hmm.. i forgot how to get the density of the cylinder

V=2\pir2h
thats the formula of the cylinder right?

The volume of a cylinder is V=\pi r^2 h, where r2 means r\times r.
 
Copy!

For example
V= 10L
r2=0.200m
h=15
=3.14

And the answer is? formula of the density is D=m/v right? how to get it?

:(
 
westside said:
Copy!

For example
V= 10L
I presume L means litres.
r2=0.200m
h=15
=3.14

And the answer is? formula of the density is D=m/v right? how to get it?
Well, you could do with knowing the mass of the fluid in the cylinder (I'm just guessing that this is a cylinder with fluid in, mainly due to the L)

It would help if you wrote down the question exactly as worded in your textbook, or wherever it's coming from, to save me from having to guess!
 

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