There are many different compounds used in making rubberbands (some of them not rubber at all!) most have densities slightly greater than water. One source gives a density of 1.08 g/cm3.
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The density of erasers can vary depending on the material they are made of. On average, the density of erasers made of rubber or synthetic materials is around 1.1 to 1.5 grams per cubic centimeter.
To convert grams to liters, you need to know the density of the substance. Once you have the density, you can use the formula: volume (in liters) = mass (in grams) / density (in g/mL). So, if you have the density of the substance, you can divide 0.770 grams by the density to get the volume in liters.
When rubber is heated, it typically expands and its density decreases. This is because the increased thermal energy causes the rubber molecules to vibrate more, creating more space between them and leading to a decrease in density.
The density is calculated by dividing the mass (75 grams) by the volume (30 cubic centimeters). Therefore, the density is 2.5 grams per cubic centimeter.
The density of the object can be calculated using the formula: Density = Mass/Volume. Plugging in the values, Density = 30 grams / 10 cm^3 = 3 grams/cm^3. Therefore, the density of the object is 3 grams/cm^3.