3.5 g of a hydrocarbon fuel is burned in a vessel that contains 250. grams of water initially at 25.00 c. after the combustion, the temperature of the water is 26.55 c. how much heat is evolved per gram of fuel burned?
1. 73.5 j/g
2. 1263 j/g
3. 463 j/g
4. 143 j/g
5. 1105 j/g
6. 1764 j/g
7. 26555 j/g
8. 511 j/g

Which two particles are found in the center of an atom

The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.

You can decrease the resistance of a length of wire by