1. What is Immersion Weight?

Immersion weight refers to the apparent weight of an object when it is submerged in a fluid. It is equal to the object's actual weight minus the buoyant force acting on it.

2. How Does the Calculator Work?

The calculator uses the immersion weight equation:

Where:

• \( W_{immersed} \) — Immersed weight (N)
• \( W \) — Actual weight in air (N)
• \( F_b \) — Buoyant force (N)
• \( \rho_f \) — Fluid density (kg/m³)
• \( V \) — Volume of displaced fluid (m³)
• \( g \) — Acceleration due to gravity (9.81 m/s²)

Explanation: The buoyant force equals the weight of the displaced fluid (Archimedes' principle), which reduces the apparent weight of the submerged object.

3. Importance of Immersion Weight Calculation

Details: Calculating immersion weight is crucial for determining the effective weight of submerged objects, designing flotation devices, and understanding buoyancy in engineering applications.

4. Using the Calculator

Tips: Enter the object's weight in newtons, fluid density in kg/m³, and displaced volume in m³. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between weight and mass?
A: Weight is a force (mass × gravity) measured in newtons, while mass is measured in kilograms. The calculator uses weight.

Q2: How do I find the volume of an irregular object?
A: Submerge it in water and measure the displaced volume, or calculate it geometrically if regular.

Q3: What if the object floats?
A: For floating objects, the immersed weight is zero (buoyant force equals actual weight).

Q4: Does this apply to all fluids?
A: Yes, as long as you use the correct density for the specific fluid (water = ~1000 kg/m³).

Q5: Why is gravity 9.81 m/s²?
A: This is Earth's standard gravitational acceleration. Use different values for other planets.