Solar
generally we use metals and among them we use group 1 because of their lower ionisation potentials and amon them we specifically use cesium because IP decreases from top to bottom
Substance made from low work function value materials (as Sodium,Cesium etc.)
Solar
Solar panels, night vision scopes, medical imaging to name a few.
kenetic energy is the type that is used when it moves but it is not energy but it uses it as all things do
it uses sound energy
The pencil uses Thermal energy
Solar
Solar panels, night vision scopes, medical imaging to name a few.
The type of energy a computer uses is electricty.
That depends on the type of calculator you are referring to. An abacus uses mechanical energy An electronic calculator uses electrical energy A brain doing mental arithmetic uses chemical energy
is used in photoelectric cells.
It uses electrical energy,mechanical energy.
An automobile IS not energy; it merely USES energy.
kenetic energy is the type that is used when it moves but it is not energy but it uses it as all things do
Chemical energy.
Geothermal energy
it uses sound energy
The pencil uses Thermal energy