A throphy has a mass of 3.85kg and a volume of 480cm3 -- Help please

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Homework Help Overview

The discussion revolves around calculating the density of a trophy with a given mass and volume. The subject area is primarily focused on the concept of density in physics.

Discussion Character

  • Conceptual clarification, Mathematical reasoning, Assumption checking

Approaches and Questions Raised

  • Participants explore the definition of density and its formula, with some questioning how to apply the formula using the provided mass and volume. There are inquiries about the implications of the calculated density in relation to the material of the trophy.

Discussion Status

Participants are actively engaging with the concept of density, discussing how to apply the formula and what the results imply about the trophy's material. There is a mix of understanding and uncertainty regarding the calculations and their significance.

Contextual Notes

Some participants express confusion about the application of the density formula and the implications of the calculated density in relation to the material properties of gold.

Luke White
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Find the density
 
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Find the density of the throphy
 
What is the definition of density?
 
mass per unit volume as i know .
 
Luke White said:
mass per unit volume as i know .

Right, so if you are given a mass of 3.85 kg and a volume of 480 cm3, what would be the mass per unit volume?
 
how can you work it out?
 
Luke White said:
how can you work it out?

Were you taught the concept of density and the formula associated with it?

If meter per second means 1 m divided by 1 s, what what mass per unit volume give?
 
its p=m/v how can I find the density?
 
Luke White said:
its p=m/v how can I find the density?

what do m and v represent in your equation?
 
  • #10
mass and volume...
 
  • #11
Luke White said:
mass and volume...

Good. And you are told mass = 3.85 kg and volume = 480 cm3, so if you put those values into your formula, what do you get?
 
  • #12
I have to divide them? Then it says that gold has a density of 19,000kg/m3 . Is the throphy made out of real gold
 
  • #13
Luke White said:
I have to divide them? Then it says that gold has a density of 19,000kg/m3 . Is the throphy made out of real gold

Yes you have to divide them. If you are given those values and your density doesn't match up to 19,000 kg/m3, then it isn't made out of real gold.
 
  • #14
so 3.85 divide 480 = 8.02083333 <--- density... so not real gold
 
  • #15
Luke White said:
so 3.85 divide 480 = 8.02083333 <--- density... so not real gold

Yes, but don't forget your units. You divided kg by cm3, so your units are kg/cm3
 

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