transitted
if there is radiation in the vacuum, then it's not really a vacuum.
No waves do not transfer matter but it transfers only the energy
radiation
Not necessarily. Quite often, only part of the energy is transferred. Another part may be wasted, or simply remain in its original form. The details really depend on the specific type of energy transfer.
mechanical waves
Radiation is the only method of energy transfer that can transfer energy like heat through space.
if there is radiation in the vacuum, then it's not really a vacuum.
No waves do not transfer matter but it transfers only the energy
No waves do not transfer matter but it transfers only the energy
None. There is only a transfer of energy. You obtain the energy from a consumed source example: you eat food which causes a transfer of energy but the food does not provide energy.
radiation
Not necessarily. Quite often, only part of the energy is transferred. Another part may be wasted, or simply remain in its original form. The details really depend on the specific type of energy transfer.
mechanical waves
False.
closed system
No. There is also the transfer of mass. All matter contains energy, thus the movement of mass in vacuum is another method of energy transfer. However, for transferring thermal energy, radiation is the only method that can take place inside a vacuum as it doesn't need particles to travel through where as conduction and convection do.
Max efficiency of energy transfer can only occur when impedence source matches the impedence of the load.