In a cd player, where is the potential energy stored?
Where does does it change form?
Where is the kinetic energy released?
Also
What happens to the mass in the leaves of a tree when the tree burns??
PLEASE ANSWER ALL OF THE QUESTIONS!!
A CD player, when playing, gets the energy required to turn the disc, operate a disc-reading laser, and emit an electrical sound signal to speakers, from an electrical source. That electrical energy could come either from a wall outlet or batteries.
When trees burn, the mass of the leaves and other parts is converted to CO2 and water vapor (H2O). Some ash will remain.
In a CD player, the potential energy is stored in the form of electrical energy in the batteries or power source.
The potential energy then changes form to mechanical energy when the CD starts spinning. The electrical energy is converted into rotational energy as the motor drives the CD to spin. This change in form occurs within the CD player.
Once the CD is spinning, the kinetic energy is released. Kinetic energy is the energy of motion, and it is observed in the rotational movement of the CD. The stored potential energy is converted to kinetic energy as the CD spins and the laser reads the information on the CD.
Regarding the mass in the leaves of a tree when it burns, it is important to note that mass is not destroyed or created in such processes, according to the law of conservation of mass. When a tree burns, the carbon-based compounds in the leaves undergo combustion, resulting in the release of carbon dioxide gas, water vapor, heat, and other byproducts. The mass of the tree's leaves remains the same, but the carbon within them transforms into other chemical forms, such as carbon dioxide gas.