Two identical bottles, one filled with water and one empty, falling from a height, which bottle is e

2 identicalLaminated glassBottles, one empty, one filled with water, and in addition falling to the ground from the same absolute height, which bottle can easily break? Generally speaking, heavy bottles are very easy to break. However, when the bottle is filled with water, the water in the bottle also has another effect, which can reduce the deformation of the bottle, but makes the bottle not easy to break.

Laminated glass bottles crack, mostly due to deformation. The empty bottle is vertical, and the ground causes a pressure on the bottle, and the bottle deforms from the lively and cheerful, and finally cracks. When the bottle is full, because the water cannot be reduced, the deformation is reduced, and the bottle is not easy to crack.

When the bottle is full and the cap is tightened, it is even less likely to break.

The specific heat ratio of water is very high, which can reduce the temperature difference deformation of the wire-lined glass. There is also the absorption ratio of water.

It is very large, and can absorb and digest most of the destructive force caused by vibration, so the bottle with water is like a booster, so it is not easy to break It is also scientifically reasonable. When the bottle is filled with water, the water in the bottle also has another effect, which can reduce the deformation of the bottle, but makes the bottle not easy to break. Laminated glass bottles crack, mostly due to deformation.

In addition to the working pressure, the surface tension of the bottle can be uniformed.

In addition, the specific heat ratio of water is very high, which can reduce the temperature difference deformation of the wired glass.

There is also a very large absorption ratio of water, which can absorb and digest most of the destructive force caused by vibration, so the bottle with water is like a booster, so it is not easy to break It is also scientifically reasonable. But it must be at room temperature, if the bottle working temperature changes more than plus or minus one, which ensures the boiling point and ice degree of the water, the bottle is easy to break. Because the water becomes icy and the capacity expands, the boiling causes the tire pressure to standard.

Therefore, bottled water should not be filled. For example, the storage tank of the car is easy to damage when it is full. With the absolute height and net weight, combined with the friction, we can approximate the approximate velocity of the bottle when it is upright, as well as its mechanical kinetic energy.

If the compressive strength of the ground.

higher, e.g. concrete.

Or the asphalt of the ground, if the road surface is not destroyed by the mineral water bottle, then the ground will cancel out the mechanical kinetic energy of the mineral water bottle. The mechanical kinetic energy of the mineral water bottle itself will give the bottle wall a very large impact in an instant.

If this force exceeds the limit of the burden on the wall of the mineral water bottle, then the bottle will be destroyed, not to mention the probability of hitting the ground or not. If it is not destroyed, it is possible for the bottle to be lifted and hit the ground, even if it is based on multiple bounces. This is also an analysis of the basics, and the operation process is much simpler.

Of course, the bottle without water is easier to break, because the bottle without water is not subject to uniform motion but accelerates, so the impact on the bottle is greater, but the air pressure on the bottom of the bottle filled with water is also greater than that of the bottle without water, which has a protective effect on the bottle.

Empty bottles are more likely to break, and when an empty bottle is hit, it is not possible to transfer the force, and the force of the bottle filled with water will be transferred to the water in the cup after being hit.

I think it must be filled with water that is more likely to break, because the water will form an outward tension after this kind of bottle falls, which will break the bottle.

When the bottle is filled with water, the water in the bottle has another effect, which can reduce the deformation of the bottle, but makes the bottle not easy to break. When the empty bottle hits the ground, the ground exerts a pressure on the bottle, and the bottle deforms from the outside to the inside, and the bottle finally breaks because there is no reaction of the water in the bottle.

Once people set foot in the sky, they feel like they are "floating" in the universe. This refers to physical equivalence: if people close their eyes, they can't tell the difference between a free-fall environment and a weightless environment without a reference!

The rules of judgment are: downward acceleration is weightlessness, upward acceleration is overweight, and complete weightlessness is acceleration equal to gravitational acceleration and downward acceleration.

<> shreds the collected waste paper and puts it in a small plastic bag. Place the eggs in the middle of the waste paper and wrap them in a plastic bag. Then, put the waste paper into a larger plastic bag, put the eggs in the plastic bag in the middle of the waste paper, and wrap it in a plastic bag.

Depending on the situation, it can be packed in shredded paper and plastic bags. After the eggs were wrapped in a three-layer plastic bag, they were lowered from the fifth floor with the eggs intact. Mainly the confetti acts as a buffer and effectively protects the eggs.

There are several dedicated scientists who have dedicated their lives to studying how much pressure a drop of water can produce after falling from a high altitude, and whether it can cause death. Some say it's stressful, others say it's not supposed to be stressful, but they're painful because they can't do experiments. After the hoses are so high, they don't fall, and one day, when the discussion continues, there is a fight for science.

Finally, the aunt who cleaned the floor listened to them and said to them: Are you stupid? Aren't you rained?

The last few people looked at each other and crashed into the wall.

Earlier it was reported that Chinese scientists drilled 236 hot and dry rocks at a depth of 3,705 meters in Qinghai. Researchers believe that China's onshore hot dry rock resources are 856 trillion tons of standard coal. According to international standards, with 2% as the recoverable resources, the recoverable resources of hot dry rock in China will reach 17 trillion tons of standard coal.

From the above report, we are inspired that at depths of kilometers underground, rock temperatures can reach as high as 236.

Paper is affected by its own gravity and the pressure formed by the gravity of the water in the cup. These two forces form a resultant force f1 in one direction that is vertically downward. Depending on the surface tension of the water, the paper experiences an upward tension.

Since the paper is in the atmosphere, the paper is also affected by the atmospheric pressure, which is vertically upwards and forms a resultant force with the tension and f2 magnitude is equal and opposite in the direction, so the force is balanced. Since the paper is affected by the surface tension of the water, it is in close contact with the mouth of the cup and completely closed, so the paper continues to maintain the balance of force and naturally blocks the water in the cup, so the water does not leak and the paper does not fall off.

Introduction: Many people don't know why empty bottles shatter when they fall to the ground, but bottles filled with water don't break easily.

Some people did an experiment and dropped an empty bottle on the ground and it shattered, while a bottle filled with water did not break easily. If the bottle falls on the ground, it will produce a certain pressure, at this time the bottle is filled with water, it is not easy to break, if you find that your cup is broken, you have to see if your cup is full of water. If the bottle is filled with water, it will change the shape of the bottle, and it will not be easy to break when it falls on the ground.

If a cup is not filled with water and falls on the ground, it will be easy to break, at this time we must adjust it in time, so that our cup is stuffy with some water all the time, so that our cup can maintain sufficient moisture.

There are many people who choose an empty bottle and a bottle full of water when doing experiments, if you want your cup to be better protected, you must first fill the cup with water and screw the cap. If your cup is usually broken more severely, you should also put the cup in a safe place. If it is too hot when you usually receive water, you can also put a protective cover on the outside of the bottle, don't let yourself get hurt, and you must pay attention to protecting yourself so that you can be more comfortable.

Some people are always buying a cup and will be very impatient, at this time you must consider your own situation, if you have this situation, you should also make appropriate adjustments, do not let yourself have this situation. If there is always a broken cup, you must buy yourself a *** cup without a cup, don't let your cup always break. If the cup is always broken, it is also necessary to protect the cup properly.

Because the force of the cup full of water is uniform, and it is not empty, it will have a certain pressure, and it is normal that it is not easy to break.

Because of the reaction force, the water in the bottle can well eliminate the effect of the force and can better protect the water bottle.

Because the pressure of the water and the pressure of the bottle cancel each other out, the interaction between the two can achieve such an effect.

If you don't get this question right, it will easily form a question that misleads you for most of your life.

It depends on how you understand it.

1。If it is in an inertial frame.

This "degree of difficulty" is measured by the external torque required to push the bottle to the surface.

Obviously, if you want to push a bottle full of water, you will definitely need more force than you would to push down half a bottle of water.

Since it comes to the center of gravity, why is the center of gravity of half a bottle of water the lowest, but not the most difficult to pour here? Because we also have to consider the quality, the lower the center of gravity, the more stable, is a relative concept, if you want to make a specific comparison, then you should compare it under the premise of equal quality.

What is said upstairs is not rigorous. The quality of half a bottle of water and a bottle of water are not the same, and it is not easy to understand which is more difficult to get from the perspective of the center of gravity. It should be analyzed from the point of view of moments.

This "degree of difficulty" can be measured by the maximum angle that can be formed in the vertical direction of the bottle in a balanced state, and for solids, it can be explained by the lower the center of gravity, the less easy it is to pour.

2。If it is in a non-inertial frame.

For example, bottles are placed on the car, but the car suddenly slows down. At this time, the lower the center of gravity, the less likely it is to fall, and it is no problem. The lower the center of gravity, the less likely it is to be "thrown over".

For this question, half a bottle of water has the lowest center of gravity, but a bottle full of water is the hardest to push. We can't just think that the center of gravity of an empty bottle and the center of gravity of a bottle filled with water are in the middle, and they are not easy to pour, but we should take into account the quality factor, and whether they are in an inertial frame or not.

In short, my answer to this question is: a full bottle is the hardest to push, and a half-bottle of water is the hardest to be "shaken".

If you don't believe me, you can talk to your teacher, and even if you always use the center of gravity to explain, you can also discuss what I said with him.

Bottles filled with water, bottles filled with half water, empty bottles.

Their center of gravity is the bottle with half of the water, so the half of the water is the least likely to pour.

Half of the most difficult to pour.

The center of gravity of empty bottles and bottles filled with water is in the center, and the center of gravity of bottles filled with half a bottle of water is below the center point, and the center of gravity is high and unstable, so.

Hope it helps!

It should be a half-filled bottle that is not easy to pour. Because the centroid of a bottle filled with water and an empty bottle almost coincide with a high center of gravity, while the centroid of a bottle filled with half water is a combination of the centroid of a half-bottle of water and an empty bottle with a low center of gravity.

A half-filled bottle of water is the hardest to pour because it has the lowest center of gravity, the most stable, and it's not easy to pour.

Half-filled Bottles of Water Bottles Filled with Water Empty Bottles Empty bottles are easiest to pour.

The lower and more stable the center of gravity, the less accessible it is.

Because the bottle is placed upright on the ground, the distance from the ground to gravity is the force arm. The shorter the arm is. The less torque is generated. So the harder it is to flip upside down.

The reason why the tumbler does not fall, the first condition is that the center of gravity must be low enough.

Generally speaking, heavy bottles are prone to breakage. However, when the bottle is filled with water, the water in the bottle has another effect, which can reduce the deformation of the bottle, but makes the bottle not easy to break the sailboat.

Glass bottle breakage, mostly due to deformation. The empty bottle fell to the ground, and the ground exerted a pressure on the bottle, and the bottle deformed from the outside to the inside, and finally broke the auspicious letter crack. The bottle is filled with water, which reduces deformation and makes the bottle less prone to breakage because the water is incompressible.

Fill the bottle with water, and then tighten the cap, it is less likely to break, so the empty bottle is easy to break.

Bottles filled with water are prone to breakage.

Ruptures occur because of deformation. When it is filled with objects, although it occurs, the deformation of the bottle itself is not easy to change in the process. Because there is water in the bottle, it stops its deformation.

But when it comes to falling from a height, the bottle may shatter. But for the empty one, it is still better than the empty bottle to be broken.

This is a physical phenomenon, the density of air is small, it is easy to compress, and the volume of water will not become smaller no matter how you compress it, so a bottle full of water is not easy to break when it falls on the ground.

Why is a bottle filled with water less fragile when dropped on the ground? Because there is no air when the bottle is filled with water, it is the weight of the air pressure in physics.

A bottle filled with water is not easy to break when it falls to the ground, because the water in the bottle reduces the deformation of the bottle.

Glass bottle breakage is mostly caused by deformation from the outside to the inside. In general, heavy bottles are prone to breakage. But when the bottle is filled with water, the water in the bottle has a function, which can reduce the deformation of the bottle, but makes the bottle not easy to break.