How much energy (in J) is required to evaporate 25% of 4g of water currently at 100 oC?

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant

Which of these is not a possible type of energy transformation? a. electrical energy into light energy b. sound energy into nuclear energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy

4. if you were an astronaut on the moon, what would you experience? what would you see from your perspective?