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How will knowing the density of a substance help you determine whether an object made from that material will float in water?
If an object is to float in water it must displace a volume of water equal to its weight; knowing the density of the substance that makes up the object allow a calculation to be made of the volume of water that must be displaced so that the object will float.
If a substance has a density greater than that of water, it can be made to float by, for example, making it hollow; for example a ship made out of steel can be made to float as it has lots of hollow space inside it which means its effective density is less than that of water. Should the hull be compromised in any way, or by "splashing" over the top, the effective density can increase to the point where it is greater than that of water and the ship will sink.
The density of water is not constant as it depends upon its temperature and things (like salt) dissolved in it; it was this change in density that led to loss of shipping and cargo which prompted the invention of the Plimsoll Line which is marked on the side of ships - it shows where the surface of water will be in different types of sea [water] for a given loading (the Line itself marks the maximum safe load).
However, for small solid objects made of a substance of a greater density than that of water can still be made to float by using the surface tension of water: a clean sewing needle can be made to float if dropped very gently onto some water* as the force provided by the surface tension is enough to prevent the needle from passing through. If the surface tension is disrupted, for example by agitating the water, or by a drop of washing up liquid, the needle will sink.
* If you don't have a steady enough hand: laying the needle on a piece of blotting paper or tissue paper and gently putting the paper on the water will make this easier to achieve - the paper will fairly quickly soak up water and sink away leaving the needle floating on the surface [tension].
What else can I help you with?
How many cc are there in 75 mg?
To convert milligrams (mg) to cubic centimeters (cc), you need to know the density of the substance. The density of the substance will determine how many cc are in a specific mass of the substance. Without knowing the density of the substance, it is not possible to accurately convert 75 mg to cc.
20 mg converts to is how many cc?
Converting milligrams (mg) to cubic centimeters (cc) requires knowledge of the density of the substance in question. The conversion factor depends on the density of the specific substance being measured. Without knowing the density, a direct conversion from mg to cc is not possible. To accurately convert 20 mg to cc, you need to know the density of the substance in question.
How many cc is in 1 mg?
The conversion of milligrams (mg) to cubic centimeters (cc) is dependent on the density of the substance in question. To convert mg to cc, you need to know the density of the substance in milligrams per cubic centimeter (mg/cc). Once you have this density value, you can divide the mass in milligrams by the density in mg/cc to obtain the volume in cubic centimeters. Without knowing the density of the substance, it is not possible to give a direct conversion of mg to cc.
What is the density if the mass is 2000 grams?
Density = Mass/Volume. You cannot calculate density without knowing BOTH mass and volume.
How many cc is in 10 mg?
Oh, dude, you got me with a tricky one there. So, like, it really depends on the substance you're talking about because milligrams (mg) measure mass and cubic centimeters (cc) measure volume. You'd need to know the density of the substance to convert between the two. So, like, without that info, I can't give you a straight answer.
How will knowing the density of a substance help you determine wether an object made from that material will float in water?
If it is lower it will float
What is the Volume of 1 lb of?
The volume of 1 lb of a substance would depend on the density of that substance. Without knowing the specific substance and its density, it's not possible to determine the volume.
How would knowing the density of different substances be useful?
it can determine if an object sinks or floats in the substance
How many kilograms in a cubic feet or cubic meter of 10mm?
To convert 10mm to kilograms in a cubic foot or cubic meter, you need the density of the material in question. Without knowing the material's density, a direct conversion is not possible. The density of the material will determine the amount of kilograms in a given volume.
How can you predict density?
Density can be predicted by knowing the mass and volume of a substance or material. It is calculated by dividing the mass of an object by its volume. This relationship allows for the prediction of the density of a substance based on its physical properties.
How will knowing the Density of a substance that will help you determine whether an object made from the material will float in water?
The density of water is roughly 1 gram/cm3. If the density of the substance is less than that, then a solid lump of it can float. Otherwise it can't, but you can form the lump into shapes that can float, just as plate steel is formed into the shape of cruise ship or an aircraft carrier.
How will knowing the density of a substance help you determine whether an object made from that material will float in water.?
The density of water is roughly 1 gram/cm3. If the density of the substance is less than that, then a solid lump of it can float. Otherwise it can't, but you can form the lump into shapes that can float, just as plate steel is formed into the shape of cruise ship or an aircraft carrier.
How will you knowing the density of a substance help you determine whether an object made from that material will float in water?
The density of water is roughly 1 gram/cm3. If the density of the substance is less than that, then a solid lump of it can float. Otherwise it can't, but you can form the lump into shapes that can float, just as plate steel is formed into the shape of cruise ship or an aircraft carrier.
How will knowing the density of a substance help you determine whether an object made from that material can float in water?
The density of water is roughly 1 gram/cm3. If the density of the substance is less than that, then a solid lump of it can float. Otherwise it can't, but you can form the lump into shapes that can float, just as plate steel is formed into the shape of cruise ship or an aircraft carrier.
How will knowing the the density of a substance help you determine whether an object made from that material will float in water?
The density of water is roughly 1 gram/cm3. If the density of the substance is less than that, then a solid lump of it can float. Otherwise it can't, but you can form the lump into shapes that can float, just as plate steel is formed into the shape of cruise ship or an aircraft carrier.
How will knowing the density of the substance help you determine whether an object made from that material will float in water?
The density of water is roughly 1 gram/cm3. If the density of the substance is less than that, then a solid lump of it can float. Otherwise it can't, but you can form the lump into shapes that can float, just as plate steel is formed into the shape of cruise ship or an aircraft carrier.
How can the atomic radius be determined by finding the density of a material?
The atomic radius can be determined by finding the density of a material because the density is related to the spacing between atoms in a solid material. By measuring the density and knowing the atomic mass of the material, scientists can calculate the volume occupied by each atom and thus determine the atomic radius.
