We can solve this problem using the force equation.
Force = Mass * Acceleration
2kg * 4m/s = 8 N
The net force required to keep the object moving at this speed and in this direction is 8 N.
The SI unit of mass is the kilogram, and
the SI unit of force is the Newton.
A boiling pot of water (the water travels in a current throughout the pot), a hot air balloon (hot air rises, making the balloon rise) , and cup of a steaming, hot liquid (hot air rises, creating steam) are all situations where convection occurs.
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Kinetic Energy because when the pendulum is dropped its gravitational energy is transferred into kinetic energy as it gains speed.
