4. What happens to the energy in a system – where does the energy come from, how is it changed within the system and where does it ultimately go? How does the energy flow affect the materials in the system?

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

Will mark as brainliest how does a catapult increase the trajectory of an object? ps. answer as if u were a 5th grader

The protons in a nucleus are approximately 2 ✕ 10^−15 m apart. consider the case where the protons are a distance d = 1.93 ✕ 10^−15 m apart. calculate the magnitude of the electric force (in n) between two protons at this distance.