Answer:
5500
Explanation:
I cant explain it but when i asked my teacher thats what he told me
im pretty sure this is right 4. true 5. force
Answer:
zero
Explanation:
In this system, only conservative forces act. Therefore, the mechanical energy, that is, the sum of the kinetic energy and the potential energy, remains constant. When the mass is at its maximum displacement from equilibrium, its potential energy is maximum, therefore, its kinetic energy is minimal, that is to say, that its instantaneous velocity at that point is zero.
<span>muscles perform Potential->Kinetic->heat potential- energy that can be used and is stored for use kinetic - movement heat- a prime factor of any kinetic relative.
hope it helped</span>
