[Archive!] Pure mathematics, physics, chemistry, etc.: brain-training problems not related to trade in any way - page 193
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The word "vaporised" should be understood to mean the transfer of kinetic energy of the fly into thermal energy
Since it is a learning task, losses and other phenomena can be approximated as weakly significant
Под словом "испарилась" следует понимать переход кинетической энергии мухи в тепловую
Поскольку задача учебная, можно приблизительно считать потери малыми
I can see why dried flies often accumulate near the windows...
:)
Snide? What would be your guess?
A fly consists of water, proteins, carbohydrates, fats, vitamins and minerals. In short, everything you need :)
The word "vaporised" should be understood to mean the transfer of kinetic energy of the fly into thermal energy
Since the problem is academic, we can roughly consider losses and other phenomena to be of little significance.
>> Got it.
He has many of these problems, and the book is well known
Let the fly have a mass of 1 kg and consist of water. The heat of heating and evaporation of 1 kg of water is about 3.3 MJ.
Consequently, its speed is about 2570 m/s.
Yes
Let's think of the mass of the kettlebell as 16kg - that's more familiar. Or were you given weights for chemical scales? Well, then a household spring scale won't measure 100g.
2*Pi*sqrt( l / g) - that's about the oscillation period of a pendulum.
I'm still wondering how to meditate on mass and weight to see volume. And it's not just me, Westminster Abbey is nervous too, there's a dude trying to climb out of his grave to find that out too.
Oh, as I was writing, Ais had already written the formula there too.