In water particles a much closer together and they can quickly transmit the vibration energy from one particle to the next. This means the sound wave travels over four times faster than it would in air but a takes a lot of energy to start the vibration.
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Answer: a)
Explanation: Mass percentage is defined as the ratio of the mass of the particular element to the total mass of the substance multiplied by 100.
mass of nitrogen[2 atoms of N] = 28 g
Total mass of
A cubic meter is about the same as the volume occupied by a _____.
Answer: Washing machine
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A I believe should be right!