Question

A solid has a volume of 8 cm³. when weighed on a spring scale calibrated in grams, the scale indicates 20 g. what does the scale indicate if the object is weighed while immersed in a liquid of density 2 g/cm³?

A) -136.8 g
B) -116.8 g
C) 20 g
D) 156.8 g
E) 176.8 g

Answer 1

The scale will still indicate 20 g when the object is weighed while immersed in the liquid of density 2 g/cm³.

This correct answer is C)

Step-by-step explanation:

To find the reading on the scale when the object is weighed while immersed in a liquid of density 2 g/cm³, we can use the formula Density = Mass/Volume. We know that the volume of the object is 8 cm³. From the given information, the mass of the object is 20 g. So, we can calculate the density of the object as follows:

Density = Mass/Volume = 20 g/8 cm³ = 2.5 g/cm³

Now that we have the density of the object, we can use the formula Density = Mass/Volume to find the mass when the object is immersed in the liquid of density 2 g/cm³:

2.5 g/cm³ = Mass/8 cm³

Mass = 2.5 g/cm³ * 8 cm³ = 20 g

Therefore, the scale will still indicate 20 g when the object is weighed while immersed in the liquid of density 2 g/cm³. So, the correct option is C) 20 g.

This correct answer is C)