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Explain the following natural events in terms of the laws of physics t.docx

Explain the following natural events in terms of the laws of physics that you have learned in this class. Include figures if necessary.
How does a bird fly?
If you keep boiled egg inside refrigerator, it becomes difficult to take the shell off. But if you keep it warm water for a minute or so it becomes very easy. Why?
Why inside swimming pool we feel very light weight?
Mention all the laws of physics applied in these processes.
Solution
Why inside swimming pool we feel very light weight?
A person in water feels an upward force which is called the buoyant force , exerted by the water acting in upward direction. This reduces the apparent weight of the body and therefore we feel very light inswimming pool.
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Explain the following natural events in terms of the laws of physics that you have learned in this class. Include figures if necessary.
How does a bird fly?
If you keep boiled egg inside refrigerator, it becomes difficult to take the shell off. But if you keep it warm water for a minute or so it becomes very easy. Why?
Why inside swimming pool we feel very light weight?
Mention all the laws of physics applied in these processes.
Solution
Why inside swimming pool we feel very light weight?
A person in water feels an upward force which is called the buoyant force , exerted by the water acting in upward direction. This reduces the apparent weight of the body and therefore we feel very light inswimming pool.
.