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Whatever the actual weight of the balloon is, if you just set it on the water, then it displaces an amount of water whose weight is equal to the balloon's weight, and then it sits there and stops displacing. Just like any other floating object. If you force the balloon completely underwater by 'helping' it with added force, then it displaces 1 liter of water, which weighs 9.8 newtons (2.205 pounds).
Refraction bends the light, making the straw appear to be broken.
Static electricity is a charge built up on an object, usually from interacting with its surrounding, like shuffling your feet or rubbing fur. Its just a charge that sits there (static!) Electric discharge is when a charge moves between objects , this happens when you touch something and the static charge on you moves to the new object in one lump. One is a measure of charge, the other is the charge's movement. One is static, the other is usually fast (not always)
what happens to things that sit in water for a long time?
Nothing really happens to the water that sits over night. It just gets warm. But if you left water out for let's say a week it would have a sour smell and would be bad to drink.
Dissolve
I believe the generic name is "water trampoline."
nothing.
It separates and doesn't mix together. The soap sits at the top of the soft water. Soft water doesn't have that much minerals in it so it doesn't mix with the soap.
I have tried that experiment before. The salt just sits on top of the water.
what sits on the water and warns ships of the danger coast
what sits on the water and warns ships of the danger coast
what sits on the water and warns ships of the danger coast
Water will condense from the air onto the glass, so it will develop droplets of water. and the tea will warm up, if left outside for a long enough time. If it is sweat tea, it will draw flies and some kinds of bees.
The weight of the object is equaled to the level of the displaced water minus the original water level before the object was placed in it.| I.e. Original water level was: 150 ml. When we placed a rock inside the water, it displaced the water and the water level now sits at 200ml. 200 ml - 150 ml = 50 ml. So the object weighs about 50 mL or 50g since 1 mL of water is 1g.