Explain the Heterogenous ?

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What is the difference between free electron theory and band theory of solids?

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How does a sound wave travel in air?

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a ball of mass 500g moving with a velocity of 10m/s collides with another ball of mass 250g.after the impact,the second ball moved off with a velocity of 8m/s calculate the final velocity of the first ball.

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What is the Ordinary magnet ?

1 Answers  

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How much does sea salt weigh per cubic foot?

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A solar collection has been installed to heat water. A large water tank has a volume of 5.0 x 105 cm3. The area of the solar collectors is 8m2. (2 meters by 3 meters). If the water in the tank starts out with a temperature of 30°C in the morning, what is its temperature in the evening after the sun has set?

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Why dies a man carrying a load on his back lean forward ?

2 Answers  

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Why is diamond so bright ?

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Name the element which has the simplest absorption spectrum?

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can we use kgs instead of kg? why?

3 Answers  

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Why dies starch stiffen the clothes ?

1 Answers  

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