First, buoyancy force must be defined. A force is just a fancy way of saying weight. But, the buoyancy force of an object is an upward acting force on an object in fluid (water in my example) and is equivalent to the weight of the volume of water that the object sitting in the water displaces. So, boats displace a huge volume of water and thus their buoyancy force, which is acting upwards, is very large; so, a boat will float. So, if two objects that displace amounts of water equal to their volume (think 2 blocks of substances) are put into water, and one sinks while the other floats, then the one which sank has a higher density than water and the one which floated has a lower density than water. But, if one object was shaped like a bowl and was floating, then all you can say is that it has a greater buoyancy force than the other object which sank. Note that when an object sinks, it still has a buoyancy force, but this force is not as large as the weight of the object itself, which is acting downwards, overcoming the buoyancy force. This topic gets even more confusing when talking about foams of various geometries, but I hope what I said kind of helps.
one dollar
Zero. Points are zero dimensional objects. Straight lines are one dimensional objects. Planes and surfaces are two dimensional objects. Volumes and polyhedra are examples of three dimensional objects.
Only if you have two dimensional objects of specific sizes in specific combinations.
Roads
A triplet.
sinks
Styrofoam floats on water, Soap sinks.
The question first states that the two objects " ... have the same mass", and then asks "Which one has the greater mass?"This does not compute.Just from the fact that one floats and the other sinks, we can't conclude anything regarding their relative masses, without knowing their respective shapes.Consider all the steel in a battleship being rolled up into a solid ball ...
You can tell if eggs are old by dropping one in a cup or bowl of water. If the egg floats, it is bad. If it sinks, it is good.
A floating object always displaces an amount of water of the same weight of the object. An object that sinks displaces the amount of fluid equal to the objects volume. Water levels rise. So to calculate either, you would need to know the weight or the volume. One other comment, the amounts are different between objects in fresh water and objects in salt water
A diamond sinks in water. There is only one stone that floats, pumice.
put them both in a tub of water and if one floats its not as dense as the other if it sinks its more dense
Weigh samples of the two that have the same volume. A solid object with greater "average density" will sink in a less-dense fluid. A lighter fluid will float atop a heavier one if they do not form a solution. Examples: - One cc of metallic iron will weigh more than one cc of motor oil (sinks) but less than one cc of mercury (floats in the mercury). - One cc of mercury weighs more than one cc of water (sinks) but one cc of oil weighs less than the water (floats).
No. A toothpick and a tiny stone both have small mass, but one floats and the other sinks. A passenger ferry and a large boulder both have large mass, but one floats and the other sinks. It's not the mass that determines whether the object will float. It's the ratio of its mass to its volume ... the number known as the object's "density".
Volume is the amount of area an object takes up. If their volumes are equal, their mass (weight) can be different or the same, so you can't always be sure.
Because the hollow ball is larger than the solid one. It displaces enough of the fluid to equal its weight, so it floats.
Yes. The older the egg gets one end starts to rise. When it floats the egg is too old or isn't alive.