Which statement correctly compares nuclear fission with nuclear fusion? A. Nuclear fission produces energy from matter, and nuclear fusion produces matter from energy.

B. Nuclear fission uses hydrogen, and nuclear fusion uses uranium.

C. Nuclear fission does not produce radioactive waste, and nuclear fusion does.

D. Nuclear fission splits nuclei, and nuclear fusion joins them.

In a system, when potential energy decreases, then entropy also decreases. true false

**urgent** roberto plans to use two transformers to reduce a voltage of 120 v to 4 v. he uses a transformer that has 300 coils in the primary winding and 50 coils in the secondary winding. he has four other transformers, as listed in the table. which transformer should roberto use to have an ending voltage of 4 v? a- w b-xc- yd- z

Apositive charge moves in the direction of an electric field. which of the following statements are true? check all that apply. check all that apply. 1.the potential energy associated with the charge decreases. 2. the electric field does positive work on the charge. 3. the electric field does negative work on the charge. 4. the potential energy associated with the charge increases. 5. the electric field does not do any work on the charge. 6. the amount of work done on the charge cannot be determined without additional information.