1. Complete the table to demonstrate each type of radioactive decay. Particle Released
Parent Nucleus
Daughter Nucleus
[text]
Decay Type
Alpha
Beta
[text]
U-238
[text]
Tc-99
Pa-234
[text]
[text]
Energy only
[text]

the right answer is 0.3 meters per second

answer: the potential energy decreases from 379 j to 243 j

explanation:

for the law of conservation of energy, the total energy in a system must be conserved. the total energy of the system is given by the sum of kinetic (k) and potential (u) energy:

e = k + u

the total energy is e=675 j, and this does not change.

initially, the kinetic energy is k=296 j, so the potential energy is

at the end, the kinetic energy is k=432 j, so the potential energy is

so, we see that the potential energy has decreased from 379 j to 243 j.