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What is cost per pound for english roast in West Michigan

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12y ago

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Why if we put the cap on the bottle the effect of the blobs do not work any more in blobs in a bottle?

Putting the cap on the bottle prevents the blobs from moving because it does not allow fresh air to enter the bottle. The blobs rely on the expansion and contraction of air inside the bottle to move, and sealing it off with the cap disrupts this process.


When an empty glass is inverted into a tub of water. Why the water does not enter the glass?

The air pressure inside the glass is stronger than the water pressure outside, creating a barrier that prevents the water from entering the glass. This is due to atmospheric pressure pushing down on the surface of the water and keeping it from filling the inverted glass.


Why can water get into the inverted tumbler only when it is tilted slightely?

Water can only enter the inverted tumbler when it is tilted slightly because this creates a lower air pressure inside the tumbler. When the tumbler is tilted, the air pressure above the water level decreases, allowing atmospheric pressure to push water into the tumbler to equalize the pressure inside and outside.


Does silvered wall of a vacuum bottle takes care of heat flow by streaming?

The silvered wall of a vacuum bottle reduces heat transfer by reflecting radiant heat. This helps to maintain the temperature inside the bottle by minimizing the heat that can escape or enter through the walls. However, the vacuum between the walls of the bottle is primarily responsible for preventing heat transfer by conduction or convection.


How rotating the coil causes the lamp to light?

Well it is according to faraday's laws of electromagnetic induction. Whenever a coil rotates in a magnetic field,magnetic flux passing through the coil will get changed, and faradays first law states that whenever there is a change in magnetic flux linked with the coil, a emf is induced in it. So due to this emf bulb will light up. Well if you want the change in flux to be explained in more general way I can explain it like this: Suppose it is raining and you have kept a bucket to accumulate the rain water in it. Initially keep the bucket vertical, so maximum amount of rain water will drop into bucket. Now start tilting the bucket, the waterdrops entering the bucket will start decreasing. now make the bucket horizontal, so now no drop will enter into the bucket. So number of water drops entering the bucket depends on inclination of bucket. Here rainddrop is similar to magnetic flux and bucket is similar to coil. So as you rotate the coil, flux linked with the coil changes.