That depends on many things including but not limited to;
1. how thick the plastic is (if it's solid or just a shell around a hollow center)
2. the type of plastic, as different plastics have different densities.
3. if it is a hollow ball, the size of the ball will make a difference as the greater the volume of air compared to the volume of plastic will lower the density
Since the density of mercury (5427 kg/m³) is greater than the density of water (1000 kg/m³ or 1.0 g/cm³), mercury will sink in water. Objects with higher density than the fluid they are in will sink, while objects with lower density will float.
Plastic polymer is comprises of about 70% of petrochemicals. The main byproducts of plastic polymers are High Density Polyethylene (HDPE), Low Density Polyethylene (LDPE), linear low-density polyethylene (LLDPE), PVC, Polystyrene and Polypropylene.
The freight class for plastic toys can vary depending on factors such as weight, density, and dimensions of the shipment. It is best to consult with the carrier or a freight classification expert to determine the specific freight class for plastic toys.
The plastic disk would float on top of the water but sink below the layer of oil in the glass container. This is because the density of the plastic disk is in between that of water and oil.
The cheapest type of plastic available in the market is usually polyethylene, specifically low-density polyethylene (LDPE).
The volume is 5m3 density=1,200 kgm3 what is the mass
11995 kgm3
7850 kg/m3
density
plastic water bottle density
The relative density of a plastic cube is the ratio of the density of the plastic cube to the density of water. To calculate it, you would divide the density of the plastic cube by the density of water (usually 1 g/cm^3). If the relative density is less than 1, the cube will float in water, and if it's greater than 1, the cube will sink.
The block of plastic must be less dense than the water in which it will be placed in order to float. Density is equal to mass over volume (D=m/v), so you could calculate the density of the block of plastic and of a sample of the water by dividing the weight of each sample by the respective volume of each sample. If the density of the plastic is less than the density of the water, it floats! A hint: the maximum density of fresh water occurs at 4 C∘and is equal to 1 gram per 1 milliliter. When a solute - such as salt - is added, the density of water will decrease.
P= density x gravity x height and the answer is negative because air is reduced in the straw
Aluminum is heavier than plastic. Aluminum has a density of about 2.7 g/cm3, while plastic generally has a lower density depending on the type of plastic.
NO
1.5
It is 352000 kg/m^3. This is absurdly dense: Osmium, the most dense element on earth has a density of 22.6 g/cm^3 - less than a fifteenth of your substance.