the total energy in a system is 675 j. the kinetic energy changes from 296 j to 432 j. which statement best…
the total energy in a system is 675 j. the kinetic energy changes from 296 j to 432 j. which statement best describes the potential energy of this system?\nit changes from 296 j to 432 j.\nit changes from 379 j to 243 j.\nit changes from 432 j to 296 j.\nit changes from 243 j to 379 j.
Answer
Explanation:
Step1: Calculate the initial potential energy
The total energy (E = K_{i}+U_{i}), where (E = 675\space J) and (K_{i}=296\space J). So, (U_{i}=E - K_{i}) (U_{i}=675 - 296=379\space J)
Step2: Calculate the final potential energy
The total energy (E = K_{f}+U_{f}), where (E = 675\space J) and (K_{f}=432\space J). So, (U_{f}=E - K_{f}) (U_{f}=675 - 432 = 243\space J)
Answer:
It changes from (379\space J) to (243\space J).