How Do You Calculate the Density and Submerged Weight of a Metal Object?

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SUMMARY

The discussion focuses on calculating the density and submerged weight of a metal object using Archimedes' principle. A metal object with a mass of 135 g displaces 50 cm³ of water, leading to a density calculation of 2.7 g/cm³, derived from the formula density = mass/volume. The submerged weight, or apparent weight, is determined by subtracting the buoyant force (equal to the weight of the displaced water) from the object's weight in air. The buoyant force is calculated as 50 g, resulting in an apparent weight of 85 g when submerged.

PREREQUISITES
  • Understanding of Archimedes' principle
  • Familiarity with the formula for density (density = mass/volume)
  • Knowledge of buoyant force calculations
  • Basic grasp of SI units and conversions
NEXT STEPS
  • Study Archimedes' principle in detail
  • Learn how to calculate buoyant force and apparent weight
  • Explore density calculations for various materials
  • Review SI unit conversions for mass and volume
USEFUL FOR

Students in physics, engineering professionals, and anyone interested in fluid mechanics and material properties will benefit from this discussion.

RMHAZARD
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hi where would i start if i wantied to do this could you please tell me the formulas i need or how i should aproch it

A metal object has a mass of 135 g and is submerged in water. it displace 50 cm^3 of water. Calculate the density of the metal and weight of the metal under the water.answer must be in si units
 
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Start with Archemede's principle and the formula for the buoyant force.

And when they say "calculate the weight under water," the question is vague: "weight" could mean "the force due to gravity," which will still be the same, or "weight" could mean "apparant weight" which would be the force due to gravity minus the buoyant force.
 
and they would be?
 
i am conpletly lost
 
do you know archimede's principle? It states that the weight of the fluid displaced is the buoyant force felt by the object.

For the first part- you do know what density means, do you not?

For the second part- how much water is displaced?(The density of water is 1g/cm^3
 
the density is the heviyness of an object and as for the second part is it 125000 the answer as 135 grams times 50 ^3 am i right
 
Do you have a textbook? Are you allowed to read it?
 

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