Physics Question. Use Archimedes' principle to explain this. Place two cans of soft drinks - one regular and o?
Law of buoyancy, discovered by Archimedes, states that any object that is completely or partially submerged in a fluid at rest is acted on by an upward, or buoyant, force. The magnitude of this force is equal to the weight of the fluid displaced by the object. The volume of fluid displaced is equal to the volume of the portion of the object submerged. We assume the two cans are standard cans and therefore are the same volume. weigh each unopened soda can and compare to the weight of water of the (external -- internal volume will be 12 ounces, but that doesn't include the can itself) volume of the can.
Conclusion about archimedes principle?
1. What is the relationship between a body's weight in air and the buoyant force on it when it is submerged in water? 2. What factors determine the buoyant force on a body submerged in a liquid? 3. A ship floats while a coin sinks in water. Explain.
Why does a dead body float in water while a live body sinks?
Initially, bodies will likely sink to the bottom, but as bodies decompose and gasses are released in the body, the corpse will rise back to the surface as a result of buoyancy.The reason that living human beings naturally float is because of the air in our lungs. The air acts as a buoyant force for the body, making it impossible for you to simply lie down at the bottom of a swimming pool. In the case of a corpse, however, they have no control over whether their lungs fill up or not. If the corpse falls in the water facedown, they might never sink to the bottom, as there will be no real chance for the air to escape from the lungs. However, if a corpse is put into the water on their back, air can escape, water can take its place, and the body will quickly sink.If a person drowns, they don’t necessarily die because water fills up their lungs; often, the body will asphyxiate itself because the windpipe closes up against the presence of water. In this case, a body could potentially float for longer periods before eventually sinking to the bottom. However, given that almost every dead body falls beneath the surface eventually, once all the air is expelled from the lungs
Why do ships float on sea water but not on river water?
Seawater is denser (due to the salt content) than freshwater. For a given volume immersed, seawater has a better ability to exert a buoyancy force. If the ship is designed for seawater, and without enough safety factor...the little extra that it sinks in to the freshwater might just be enough to be the straw that broke the camel's back, and let some water spill on the deck, and thus sink the boat. Most boats though, have a much better safety factor than that. 1.02 is a really pathetic safety factor, no engineer would approve such a design. That is what the safety factor would need be for a boat to float in seawater, but not in freshwater. ------------------------------ The real reason some ships are restricted from rivers is NOT because they would sink in the sparser water...but rather that the water is too SHALLOW for them to progress safely. The ship hull would crash in to the riverbed, and it wouldn't float smoothly. Should the river be deep enough...the boat still would float. But, rivers are notorious for being much shallower than the ocean.
Why does wood float on water?
Wood is made of cellulose which has a density of about 1.5 grams/ccWater has a density of about 1.0 gram/ccYou would expect wood to sink then because cellulose is half again as dense as water, but it doesn’t always because cellulose only comprises a part of the total volume that the wood occupies, the rest is made up mostly of spaces that contain mostly water if it’s still in the form of a tree or air if the tree is cut down, sawn into lumber, and allowed to dry out. A live sycamore tree has a density of 1.01 grams/cc , just slightly more than that of water. If you uprooted a live sycamore and threw it in the pond, it would probably sink very slowly. After it’s sawn and air-dried to a 20% moisture content, it has a density of only .54 grams/cc, about half that of the tree. It would readily float until it absorbed enough water that it’s density exceeded that of the water around it at which point it would sink. Here’s a link with more info.wood - Google Search
What is your volume and density? Physics Project Archimedes Principle?
I am taking a college level physics class and we were giving a project and I am very lost, could someone please help me? Best answer will be chosen! Stats: I'm 35 years old, this is my first physics class and it just seems very confusing. The project is: What is your volume and density? Using principles such as archimedes, or pascals, (etc) whatever applies. You must calculate your volume and denisty or a kids. Volume in cubic meters. MAY NOT TAKE MEASUREMENTS OF YOUR BODY. Must use principles learned. Once you have calculated your volume, then calculate density in kilograms per cubic meter. Next, explain procedure used to come up with volume and density and principles used-state it. Then compare your denisty to density of water for fresh and saltwater and discuss the physical ramifications of your results (think about swimming/and does your answer make sense. Thanks!!!!!!
What is the science behind floating in water?
Let’s start with comparing the density of different materials.Density is defined as (in simpler terms) the degree of the compactness.Let us compare the following:This is how compact the molecules of solids are.2. This shows how compact the molecules of liquids. As shown below are the water molecules.3. This one is for air molecules(gas).From the figures above, we can say thatSolids have higher density than liquids because their molecules are more compact than liquids.Liquids have higher density than gases because their molecules are more compact than gases.What’s beautiful with our nature is that things around us are somehow automatically arranged according to density. I’ll show a figure for this.In this figure, you can see that less dense materials tend to go above the denser materials. Example, a balloon with a helium inside it will go upwards because the density of the helium gas inside the balloon is lower than the air outside the balloon. That’s why it will go up until it reaches a density of its surroundings equal or almost equal to that of the inside.To cut it short, ships (or any other material) float in water because of the following:The density of the ship is lower than the density of the water. (Remember, less dense materials tend to go above the denser materials.)This diagram shows that there are big spaces inside the ship. This makes the density of the whole ship to be low. If you compare that with the density of the ocean (to which it floats with), the density of the whole ship is lower than the density of the water.Now, if you drill a hole at the base of the ship and water will fill up these spaces then the whole ship will sink because the density of the whole ship with water will be greater.
Why do some objects float on the water and others sink?
About 25oo years ago there was a philosopher who everyone called Archimedes. One day the king of the land came to Archimedes with a problem. The king thought one of his treasury officials was adding lead to the kingdom’s gold as they were casting coins and pocketing the difference in weight. The treasury official in question had just bought a new house for his new and very expensive mistress. Gold is heavier than lead, but not so much different that one can easily tell by picking it up. Archimedes was stumped because the adulterated gold looked and tasted the same ( he was nothing if not thorough). Archimedes tried different ways to tell how much lead and gold were in a coin, but gas chromatography had not been invented as of yet. He would have to wait another 2500 years and he was not that patient. One day as he got into his bath tub, he realized that the water level went up when he got in the tub! Wow! What did that mean? It meant that he displaced the water by his volume and it was not dependent upon his weight. Archimedes was so excited that he ran naked through town to the king’s house shouting, “Eureka, I have found it!!” The king did no have the naked old man arrested because his problem may have been solved. Archimedes weighed 167.5 pounds and the level of the water went up 2.35 inches in his tub. Once out of the tub, he determined that 2.35 inches of water in his tub weighed 167.5 pounds. He found that 167.5 pounds of lead only raised the water level a fraction of an inch. (Figure out exactly how much yourself or submit it as another question…) Therefore he determined that adulterated gold would displace more water than pure gold as the gold was heavier than the lead. He showed the king and the king soon had a new mistress and one less treasury official. He sold the house. Archimedes declined the job. He later published the findings in a peer reviewed journal and the title was, “ An object wholly or partially immersed in a fluid is held up up by a force equal to the weight of the amount of liquid displaced.” ( Please pardon my imperfect translation, my ancient Greek is rusty). Later researchers determined that is the reason that boats float, they displace water and the weight of the water displaced is equal to the force holding them up. Too full of a boat sinks. Same with rocks.