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water in a metal mug cools down quicker because the air around the mug cools the metal therefor cooling the water inside the mug
due to refraction of outside light in the mug.
When an inverted mug is put in a bucket of water it is not empty. It has air in it. When the mug is tilted the air escapes to the surface, this air is the bubbles you refer to.
Anything immersed in water becomes lighter as an upward force called buoyant force acted on it. So a mug full of water also appears lighter inside water.
this is due to buoyancy or upthrust.
I think its the same
The transfer of heat from cup to hand is known as conduction.
Because the air in the mug is transferred through the water, and air creates bubbles in water. There are large quantities of air in the mug so it will be released into the water. Air is lighter than water, and so it will float to the surface.
Heat is transferred by the change in energy (heat) from one object to the other. Both objects exchange heat, some absorb it, others liberate it so that a thermal equilibrium is reached.
conduction
molecules in hot water possess a high kinetic energy that is why vibrate vigorously when hot water is dropped from height on the floor the molecules of water transfer their energy to that of floor as a result floors molecules start vibrating,may be that is why we hear this thumping sound.
a bucket...
If the mug is made of glass, it will allow the water to cool faster. A thick styrofoam cup is better than a paper cup, even though the insulating properties of the materials are similar.
Some steps taken when making hot tea are: Boil water, add tea bag to a mug, add the boiling water to the mug, depending on one's preference, leave the bag in for 2 minutes or more. Add milk or sugar to taste.
water in a metal mug cools down quicker because the air around the mug cools the metal therefor cooling the water inside the mug
The ratio of water to rice is simple if you use a mug (a normal size one at that). First, fill the mug with water and place in a frying pan. Boil. Once boiling, fill the mug with 3/4 of rice and place with the boiling water in the pan. Turn the heat down to 2 or 3 on the dial. Wait 8-10 minutes or until the water has completely evaporated into the rice and it is ready to serve.
250ml of water equals 8.45 US fluid ounces, so it is possible that a mug could hold 250ml, depending on the size of the mug of course.