Weight Density and Mass Density

[GreenEyedGal3]

Homework Statement

I measured the weight(in Newtons), mass(in Kilograms), and volume(in cubic meters) of some objects. Then I tried to calculate the mass density and the weight density of the objects.

Homework Equations

Weight Density = weight/volume

Mass Density = mass/volume

ex. weight density of object one ... 2.00 N / 2.55x10-5 m3 = 78431 ??
mass density of object one ... .204kg / 2.55x10-5 m3 = 8000 ??

The Attempt at a Solution

I have found my numeric answers but i do not know what units the weight density and mass density are measured in. Would the weight density be measured in Newtons/ cubic meters and the mass density in kg/ cubic meters?

 

[Hootenanny]

Homework Statement

I measured the weight(in Newtons), mass(in Kilograms), and volume(in cubic meters) of some objects. Then I tried to calculate the mass density and the weight density of the objects.

Homework Equations

Weight Density = weight/volume

Mass Density = mass/volume

ex. weight density of object one ... 2.00 N / 2.55x10-5 m3 = 78431 ??
mass density of object one ... .204kg / 2.55x10-5 m3 = 8000 ??

The Attempt at a Solution

I have found my numeric answers but i do not know what units the weight density and mass density are measured in. Would the weight density be measured in Newtons/ cubic meters and the mass density in kg/ cubic meters?

Yes, those would be the unit's to use. However, you may want to re-check your calculations.

 

[GreenEyedGal3]

I keep getting the same thing on my calculations. Should i round to the right number of significant digits or should i change my calculator from degrees to radians?

 

[D H]

However, you may want to re-check your calculations.

The calculations look fine. Are you hinting about the numbers? It looks to me like the OP was using stainless steel.

should i change my calculator from degrees to radians?

What makes you think that this will make any difference?

 

[Hootenanny]

The calculations look fine. Are you hinting about the numbers? It looks to me like the OP was using stainless steel.

I was referring to the disparity between the weight of the object and the given mass multiplied by g:

(0.204*9.81)/(2.55*10^-5) = 78480