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Science > Physics > Solids, liquids & gases

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1. how water evaporates?

2. how water evaporates?

3. Bill weants to pump tyres. He uses a foot pump. before he starts the volume of air in the pump is 200cm^3. Its pressure is 100000Pa. When the pressure inside the pump is 250000Pa the valve opens and the air passes into the tyre. Calculate the volume of air in the pump at 250000Pa.

4. Bill weants to pump tyres. He uses a foot pump. before he starts the volume of air in the pump is 200cm^3. Its pressure is 100000Pa. When the pressure inside the pump is 250000Pa the valve opens and the air passes into the tyre. Calculate the volume of air in the pump at 250000Pa.

5. why when you boil water do you not get a straight line gaph until 100C and then it remain constant why does it curve. AND why would people think you would get a linear graph not a curved graph. thank you

6. why when you boil water do you not get a straight line gaph until 100C and then it remain constant why does it curve. AND why would people think you would get a linear graph not a curved graph. thank you

7. What is electrolysis?

8. What does R.M.S. mean?

9. How do you find the density of a chocolate heart and how do you know if it's hollow or not ?

10. What is density ?

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