Complete the following decay reactions 1. 18474Pb -> 42 He+
2. 146C -> 0.1e+
3.
-> 0
- 1e + 6028Ni
4.
-> 4 He + 2078171
5. 31H -> 0-1e+

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here

Which statement describes james chadwick’s discovery.

How do you convert celsius to kelvins