Answer:
A. burn the coal
Explanation:
Burning the coal is only the way to convert the stored chemical energy of the coal into the the kinetic energy of its molecules that can then be transferred to the nearby objects in the form of heat by the various modes of heat transfer such as conduction, convection or radiation.
Conduction is the contact method of heat transfer in which the adjacent atom transfers the vibration kinetic energy.
Convection is the bulk mode of heat transfer in which the bulk mass of molecules moves near and far to the heat source.
Radiation is the distant mode of heat transfer in the form of electromagnetic waves.
384,400 in scientific notation can be written as 3.844×10^5
It is a kinetic type of jump
Answer:
To win some of the ore associated with them as they can become more economical to produce.
Explanation:
Sometimes gangues are reprocessed so as to win back some of the ore that are associated with them as they become more economical to produce if the price of the metal goes up.
Gangues are undesired minerals that occurs in association with the desired ore. They are usually treated as wastes in mining.
- Often times, gangues can become economical to mine.
- Some gangues are not totally wastes, they are just undesired materials associated with the ore.
- Under certain economic considerations, they might become economical and augment the ore being processed.
- The price of the metal determines if the ore in the gangue should be won.
Quisiera ayudarte pero no puedo apenas voy a pasar a secundaria :(
