because rubber ball has air trapped in it where as eraser does not have air hence density of ball is less than water so it floats where as density of eraser is more than water so it sinks
Determine the mas and the volume.
No. It is "rubber" or a synthetic form of it. That is why it is called a rubber eraser and not a steel eraser.
An eraser erases things. A rubber rubs things out.
Synthetic rubber .
No, an eraser is made of rubber. Gallium is a metal.
Well, the main material in an eraser is rubber.
No, becase it's a rubber