After you carefully lower each cube into the water of its own cylinder, what will the new water level be in the cylinder with the lead cube?

You must be trying to measure the volume of a Pb cube but it isn't clear to me how you're doing it.

To determine the new water level in the cylinder with the lead cube, we can use the concept of displacement. When an object is submerged in a fluid, it displaces an amount of fluid equal to its own volume.

To find the new water level in the cylinder with the lead cube, we need to know the volume of the cube and the initial water level in the cylinder. Let's assume we have that information.

1. Measure the volume of the lead cube: Use a ruler or calipers to determine the length, width, and height of the cube. Multiply these three measurements together to calculate the volume (volume = length × width × height).

2. Measure the initial water level in the cylinder: Use a measuring device, such as a graduated cylinder, to determine the initial water level.

3. Calculate the displacement of the lead cube: Since the cube is fully submerged, the volume of water displaced equals the volume of the cube. This is the volume you calculated in step 1.

4. Subtract the displacement from the initial water level: Subtract the volume of water displaced by the lead cube (step 3) from the initial water level (step 2). The result will be the new water level in the cylinder.

It's important to note that this calculation assumes that there is no change in the volume of the water due to compression or expansion caused by the cube's weight or viscosity effects. In real-world scenarios, these factors may have a minor influence on the water level.