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When a cup is filled with water with a card on top of it is turned upside down the water does not fall out why?
Wiki User
∙ 8y ago
because the pressure on the inside is less than the pressure on the outside of the cup, so the card remains on the bottom of the cup when it is tipped over.
Wiki User
∙ 8y ago
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What makes a card stay up when you turn a glass upside down?
vacuum
Why does the part of the note card seen through a jar of water look different than the rest of the card?
Water and air are different when it comes to light passing through them. This is called refraction.
Why does water from an inverted glass not fall when it is covered with cardboard?
As soon as the card drops a little there is 1) a volume expansion that counteracts the displacement and 2) a thin water rim is formed between the edge of the cup and the card. If the weight of the card is low, a few grams , the surface tension of water is sufficient to prevent air from penetrating the cup. Therefore card is kept in place by the capillary force. With a card of somewhat greater weight the width of the capillary rim increases (but there is additional volume expansion to counteract the weight of the heavier card). Since the capillary force decreases with increasing width of the open edge, the weight range of cards is limited. Eventually it can no longer prevent air from rushing in. But with cards with low weights, thus a thin edge and as a consequence a high capillary force it works fine.
How much does a card weigh?
It depends on what type of card and how large it is.
What is weight or mass of an index card?
An index card masses about 3 grams. The average index card weighs around 0.0294 newtons.
How does water not spill out when glass covered with card board upside down?
When filling a cup/glass with full water the card/lid will not stay up.
Is this source card for a book filled out correctly no yes?
Is this source card for a book filled out correctly? yes no
How do you make a Boostmobile sim card work in a Nextel i930?
TURN THE B00ST SiM CARD UPSiDE D0WN AND iNSTERT iT iN THERE (REALLY W0RKS) TURN THE B00ST SiM CARD UPSiDE D0WN AND iNSTERT iT iN THERE (REALLY W0RKS)
Is turned a word?
Yes, "turned" is a word. It is the past tense of the verb "turn," meaning to move or rotate something so that it faces a different direction.
What makes a card stay up when you turn a glass upside down?
vacuum
Why does your Pokemon card have an upside down Poke-ball?
its a special code that you access online
Is an EBT card filled exactly at midnight in Washington state?
Yes, its filled at midnight and where there is a holiday in effect it's filled the day before in observance of the holiday
When does the sanction card need to be filled out for bowling leagues?
It is suppose to be filled out and paid for prior to bowling. Technically, games bowled prior to payment and card completion could be forfeited in a sanctioned league.
How do you do the card trick where you spell out the persons card that they chose?
If you are referring to the traditional trick, you would pick a card from the deck, then, when you are not looking, they turn flip the deck upside down (if the back is 1 side up but the front is correct up or down) then, when they open their eyes, they look for the one that is upside down and that's your card. If you are referring to a game on a website where it makes the card disappear, the ones they show you at the end are not even any of the ones shown in the beginning.
Can you get a copy of the original application you filled out for a credit card?
Yes, contact the creditor.
How much a babe Ruth cooperstown collection anniversary metal card worth that has an upside down back?
500
Science projects for kids?
A good one for air pressure in physics is to do an experiment circus where they are in pairs and go around the classroom trying out up to 5 different experiments. One is filling a coke can a third full of water, then heating until steam rises from the can and then using a clamp turn it upside down and into a basin of cold water. Watch the can be crushed by the difference in pressure. Another is filling a plastic cup full of water and placing a piece of card on top then turn the cup upside down and the card will stick. Then, you could try and pull apart two hemispheres in a vacuum.
