A curium-242 (Z= 96) can be produced by positive-ion bombardment when an alpha particle collides with which of the following nuclei? Note: A neutron is also a product of this bombardment, in addition to the curium-242. A. Pu -239

B. U -239

C. Am-241

D. Cf-249

E. Pu-241

When many atoms are split in a chain reaction, a large explosion occurs. this is an example of what type of energy conservation

How is the gravitational force related to the distance between two objects?

**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