Things sink in water when their density is greater than that of water. Water has a density of 1000 kg/m3, rock exceeds this by a significant amount. The principle at work is that things sink if they water tey displace weighs less than the mass of the object.
No. Water has its highest density at about 4 °C. Below and above this temperature, its density decreases.
Sure! What are the following statements about centripetal force you would like to know if they are true or not?
This is called "displacement", as the weight of water that moves is equal to the weight of the object on the water. Heavier objects displace more water. If the total weight of the object is greater than the water displaced by its volume, it is denser than water, and sinks.
Because the wood's density (which is a measure of mass in a certain volume) is less than that of water, while iron's is higher. Hence why 1 cubic centimeter of wood weighs less than the same volume of water.
The specific gravity is a dimensionless term which is the relationship of the density to the density of water. For metric measurements, the density in gm/cc or kg/l is the same because water's density is 1 gm/cc or 1 kg/l (at 3.98 °C, 1 ATM). This would not be true in pounds, gallons, and etc, although if the specific gravity is calculated, then the units will cancel out and the results will be the same.
No. Sand sinks in water because sand is more dense than water, not the other way around.
No, it sinks
True
True. Water has a lower melting point than most rocks, so when a rock is wet, the presence of water can lower the overall melting point of the rock.
Yes, its true.
all
True. A wet rock generally melts at a lower temperature than a dry rock because the presence of water in the rock lowers its melting point due to the water acting as a flux, reducing the energy required for melting.
False. Groundwater can cause erosion through processes like chemical weathering which can dissolve rock and create underground cavities. This can weaken the overlying soil and rock, leading to potential collapses and sinkholes.
yes !
True. Chemical weathering is the process by which minerals in a rock are broken down or altered through chemical reactions with substances like water, oxygen, or acids in the environment. This can lead to the weakening of the rock over time.
mostly water
All of these