---
title: "An object is suspended from a spring scale first in air, then in water, as shown in the figure above. The spring scale reading in air is \\( 17.8 \\) \\( \\text{N} \\), and the spring scale reading when the object is completely submerged in water is \\( 16.2 \\) \\( \\text{N} \\). The density of water is \\( 1000 \\) \\( \\text{kg/m}^3 \\)."
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url: "https://nerd-notes.com/ubq/81582/"
date_modified: "2025-03-13T06:22:01+00:00"
---

# An object is suspended from a spring scale first in air, then in water, as shown in the figure above. The spring scale reading in air is \( 17.8 \) \( \text{N} \), and the spring scale reading when the object is completely submerged in water is \( 16.2 \) \( \text{N} \). The density of water is \( 1000 \) \( \text{kg/m}^3 \).

An object is suspended from a spring scale first in air, then in water, as shown in the figure above. The spring scale reading in air is \( 17.8 \) \( \text{N} \), and the spring scale reading when the object is completely submerged in water is \( 16.2 \) \( \text{N} \). The density of water is \( 1000 \) \( \text{kg/m}^3 \).

![Diagram](https://nerd-notes.com/wp-content/uploads/2025/03/objectsuspendedfromscaleinairvswaterfluidsfrq-1024x635.png)

**Part a)** Calculate the buoyant force on the object when it is in the water. *(3 points)*

**Part b)** Calculate the volume of the object. *(3 points)*

**Part c)** Calculate the density of the object. *(3 points)*

**Part d)** How would the absolute pressure at the bottom of the water change if the object was removed? ___ It would increase. ___ It would decrease ___ It would remain the same. Justify your answer. *(3 points)*


*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/81582/*