anyone who will answer my question I will mark him or her answer as brainliest
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anyone who will answer my question I will mark him or her answer as brainliest
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Answer:
1,The air inside the balloon heats up. According to Charles law, the volume of gas increases with an increase in the temperature of the gas. So the density of the air inside the balloon decreases. This helps the balloon to float upwards.
2,the speed of a fluid increases, its pressure decreases. This is because the faster-moving fluid has less time to exert a force on the surface it is flowing over. In the case of an airplane wing, the air flows faster over the top of the wing than the bottom.
3,due to the absence of air, the air pressure in the straw decreases. Hence, the air pressure present on the liquid of the glass pushes the liquid into the straw causing it to move upwards and thus, helping us drink.
Explanation:
I tried to answer according to my knowledge,pls mark me as Brainliest if this was helpful