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Anonymous users2024-01-24(1) The moving object has kinetic energy, and the flying bullet is moving at high speed, so it has great kinetic energy;
2) The object at a high place has gravitational potential energy, and the flower pot is at a high place, so it has gravitational potential energy;
3) Due to the elastic deformation of the drawn bow, it has elastic potential energy, so it can do external work: shoot the arrow
So the answer is: move; Geopotential; Elastic potential
Can't get through, the 7mm bullet is an AK47 bullet, there is still a certain flight distance to penetrate the two layers of red bricks, and don't think about the 10-meter cement wall. As for the security door, it was instantly broken at home, that is, two layers of iron sheet with foam in between, as for how thick is it? Banks will definitely not be able to use it.
Nowadays, passenger planes have fecal collection boxes, and people's urine and urine are collected into the boxes, and after the plane lands, there are special garbage trucks to collect them.
I remember reading a joke before, three people were chatting about where the excrement in the toilet on the train was, one person said that he rushed directly to the railway, and the other person said that it was no wonder that he picked up a piece of jerky on the train track when he was a child and ate it and thought it tasted weird. The water in the toilet on the train is directly rushed outside, if the passenger plane is flying, is the water flushing the toilet also directly discharged at high altitude? There are also people who often feel that there are water droplets falling on their heads when they are in the open air, is it from the sewage spilled on the plane, and there are many answers about this kind, looking at these answers are quite imaginative, so where does this sewage go? >>>More
Yes! But it's only a matter of time! Under normal circumstances, formaldehyde release is abnormally slow, even for several years!
Keep it ventilated, 30-45 days is fine.