Find the Density of an Object Immersed in Water & Oil: 32.142857kg/5.612246m3

  • Thread starter Thread starter Sny
  • Start date Start date
  • Tags Tags
    Fluids
Click For Summary

Homework Help Overview

The discussion revolves around calculating the density of an object based on its weight in air and when submerged in water and oil. The subject area includes principles of buoyancy and density calculations.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to calculate the density using the weight measurements and the volume derived from the apparent mass when submerged. Some participants question the calculations of the volume and the differences in weight readings.

Discussion Status

The discussion is ongoing, with participants exploring discrepancies in the calculations and questioning the accuracy of the values obtained. There is no explicit consensus, but participants are engaged in clarifying the numerical results.

Contextual Notes

There are indications of potential calculator errors and confusion regarding the correct values for weight differences, which may affect the calculations being discussed.

Sny
Messages
5
Reaction score
0
An object weighing 315 N in air is immersed in water after being tied to a string connected to a balance. The scale now reads 260 N. Immersed in oil, the object weighs 275 N. Find the density of the object in kg/m3.

I found the mass of the object to be 32.142857kg and the apparent mass when submerged to be 26.530611kg. This means the volume would be 5.612246, because the volume of the object is the volume of the displaced water, thus giving me the mass and volume. So, 32.142857/5.612246 is 5.73, yet the answer keeps coming up wrong. What am i doing wrong?
 
Physics news on Phys.org
Would it surprise you to know that 32.142857- 26.530611= 6.612246, not 5.612246?
 
Yes, because my calculator's telling me otherwise :eek:
 
Would it surprise you to know that 32.142857- 26.530611= 6.612246, not 5.612246?

Huh?? I got 5.612246 with calculator and by hand. Maybe you pushed a worng button by mistake when you did it.
 

Similar threads

Finding downward force on immersed object
  • · Replies 62 ·
3
Replies
62
Views
5K
Balance reading when new object immersed in water
  • · Replies 20 ·
Replies
20
Views
4K
Does Throwing an Object Overboard Affect Pond Water Level?
  • · Replies 2 ·
Replies
2
Views
2K
Solving the Mystery of a Floating Bottle: Density & Volume
  • · Replies 15 ·
Replies
15
Views
2K
Buoyant Force and Archimedes' Principle
  • · Replies 13 ·
Replies
13
Views
3K
What is the volume of the wood immersed in the water-filled flask?
  • · Replies 2 ·
Replies
2
Views
2K
How Do You Calculate the Volume of a Floating Object?
  • · Replies 10 ·
Replies
10
Views
12K
Ice Core Density Problem (Inspired by NEEM)
  • · Replies 6 ·
Replies
6
Views
980
Finding the weight of an object submerged in water
  • · Replies 17 ·
Replies
17
Views
4K
Find Time to Reach Top of Beaker (10 cm)
  • · Replies 16 ·
Replies
16
Views
3K