# Need help finding the density in this particular problem

## Homework Statement

A particular object weighs 313 N in air and 254 N when immersed in alcohol of density 0.7 g/cm3. What are the volume and the density of the object?

D=m/vL

## The Attempt at a Solution

I found the volume by: 313-254 N to find the actual weight, then I divided it by 9.8 to get it into Kg, then I used the density formula to solve for volume which gave me 8.6L

So the volume is taken care of! 50% of the problem done :)!

As for the density, I'm confused because I thought I would just plug in my known values but it doesn't work. Can someone please guide me as to how I would find the density of this object? I greatly appreciate it!

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Orodruin
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Homework Helper
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Can you show what you do and get when you say "just plug in my values".

Can you show what you do and get when you say "just plug in my values".
6.02kg from the two forces/ 8.6L that I found out from part a) =D

but it doesn't :[

Orodruin
Staff Emeritus
Homework Helper
Gold Member
Which force represents the total weight of the object? What you are solving for above is the density of the alcohol.

jacksonlee
Can you please solve the second part pleaseee, need it for an assignment thanks

haruspex