What is the height of a 91 lbs. gold cube?

  • Thread starter Thread starter chrisjj
  • Start date Start date
  • Tags Tags
    Cube Gold Height
Click For Summary

Homework Help Overview

The problem involves determining the height of a gold cube with a mass of 91 lbs. The subject area pertains to physics, specifically relating to concepts of density, volume, and the properties of materials.

Discussion Character

  • Exploratory, Assumption checking, Conceptual clarification

Approaches and Questions Raised

  • The original poster attempts to convert the weight from pounds to kilograms and considers using pressure equations. Some participants suggest looking up the density of gold and using the volume of the cube instead of surface area. There is also a clarification regarding the distinction between mass and force.

Discussion Status

The discussion is ongoing, with participants providing guidance on relevant concepts and suggesting alternative approaches. There is an exploration of different interpretations regarding the use of physical properties and equations.

Contextual Notes

Participants note the importance of understanding the difference between mass and force, as well as the need for relevant equations related to volume and density in the context of the problem.

chrisjj
Messages
8
Reaction score
0

Homework Statement


Determine the height of a 91 lbs. gold cube.


Homework Equations


I'm not really sure which equations are relevant here... this is an Honors Physics problem for my girlfriend, but she asked me to attempt and I'm in Physics.
Anyways, I thought of and only found a few I could think to be relevant:
P= F/A
And that's all I could really find, or have any knowledge of.


The Attempt at a Solution


I first converted the 91 lbs. to kg, making 41.4 kg.
My thought process on this was that if I could determine the surface area through P= F/A then I could figure out a length of the cube. It being a cube that'd also decide the h height of the cube, thus giving me my answer.
However, I am stuck.
Lacking any previous physics knowledge, as my physics class just started last week, I'm not entirely sure on where to take this next.
I'm asking for a little direction, please.


Thanks for your time,
Chris
 
Physics news on Phys.org
Look up the density of gold.
 
Do as learningphysics suggested,

then use volume (of cube) and not surface area. One need not consider pressure.

See www.webelements.com
 
chrisjj said:
I first converted the 91 lbs. to kg, making 41.4 kg.
Incidentally, that isn't a conversion: pounds measure force and kilograms measure mass.
 

Similar threads

How Does Potential Energy Dissipation Affect Temperature in a Metal Cube?
  • · Replies 9 ·
Replies
9
Views
2K
How to find period of a SHM concerning a cube and spring?
  • · Replies 5 ·
Replies
5
Views
4K
Thermodynamics: Steam is added to an ice cube
  • · Replies 16 ·
Replies
16
Views
3K
Alpha Particle & Gold Nucleus Collision
  • · Replies 17 ·
Replies
17
Views
15K
Force on the bottom of the vessel containing a submerged cube
  • · Replies 30 ·
2
Replies
30
Views
4K
[Rotational dynamics] cube sliding on a dish
  • · Replies 5 ·
Replies
5
Views
2K
Where did i go wrong in fudingin the temperature of the gold cube?
  • · Replies 3 ·
Replies
3
Views
2K
Solve Momentum Problem: Ice Skater & Cube
  • · Replies 2 ·
Replies
2
Views
2K
What Is the Minimum Coefficient of Friction for a Tilted Cube?
  • · Replies 3 ·
Replies
3
Views
2K
Conceptual Issue Dealing With Atmospheric Pressure
  • · Replies 4 ·
Replies
4
Views
2K