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Why does a perspex block sink in fresh water but floats in salty water?
A perspex block sinks in fresh water because it is denser than the water. In salty water, the added salt increases the water's density, causing the perspex block to float. This is due to the principle of buoyancy, where an object will float if it is less dense than the fluid it is in.
What is the density of perspex in kg-m3?
Relatively speaking perspex is more dence than water.
Why a perspex block sinks in fresh water but will float in very salty water?
The difference in density between the perspex block and the water is what determines whether it sinks or floats. In fresh water, the density of the perspex block is greater than that of the water, causing it to sink. However, in very salty water, the increased density of the water allows the less dense perspex block to float.
What is the critical angle of perspex and water?
The critical angle for perspex and water is approximately 41 degrees. This means that any light ray entering perspex from water at an angle greater than 41 degrees will be totally internally reflected within the perspex.
Is an ice cube more dense or less dense than liquid water?
Less dense. For most substances, the solid form is more dense than the liquid form; water is a notable exception.Less dense. For most substances, the solid form is more dense than the liquid form; water is a notable exception.Less dense. For most substances, the solid form is more dense than the liquid form; water is a notable exception.Less dense. For most substances, the solid form is more dense than the liquid form; water is a notable exception.
Why does a perspex block sink in fresh water but floats in salty water?
A perspex block sinks in fresh water because it is denser than the water. In salty water, the added salt increases the water's density, causing the perspex block to float. This is due to the principle of buoyancy, where an object will float if it is less dense than the fluid it is in.
What is the density of perspex in kg-m3?
Relatively speaking perspex is more dence than water.
Why a perspex block sinks in fresh water but will float in very salty water?
The difference in density between the perspex block and the water is what determines whether it sinks or floats. In fresh water, the density of the perspex block is greater than that of the water, causing it to sink. However, in very salty water, the increased density of the water allows the less dense perspex block to float.
Is very salty water more or less dense than more dense?
More Dense.
Is oil more dense than water?
no, oil is not more dense than water
Is lead more dense than air?
Lead is more dense than air.
Is the earth less dense or more dense than water?
Earth is more dense.
Is water denser than perspex?
yes
What two metals are more dense than mercury?
Osmium and gold are more dense than mercury.See the Related Questions for a complete list of the most dense elements (many of which are more dense than mercury).
Is aluminum more or less dense than PET and why?
Aluminium is more dense than PET.
Is water more or less dense than gasoline?
More dense.
Is ice less dense or more dense than water?
no
