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A device that minimizes heat transfer is thermos. Technical name is vacuum flask.
<u>Explanation:</u>
Thermos is a bottle in which vacuum separates it from the surrounding. When the bottle is surrounded by the vacuum, there is a significant minimization in conduction.
The only part that having point of contact with the bottle inside is the thing which holds it in respective place. But there will be a small piece of contact, which will make the inner bottle to conduct heat to a small extent.
True, this is called terminal velocity
They are called mechanical waves
Acceleration just means that you add the amount of acceleration to the object's current velocity.
So if something is moving at 5m/s^2, at one second it would be moving 5m/s, then at two it would be 25m/s, then at three 125m/s, etc.
I haven't been in physics for almost a year, so I may be incorrect. But that's what I remember.