Answer:
2667 tires are needed to meet the demand of ten homes for one year.
Explanation:
According to the Second Law of Thermodynamics, only a part of generated energy when tires are burned can be utilized due to irreversibilities associated with finite temperature differences. The energy from a tire that can be transformed into electricity (), measured in kilowatt-hours, is estimated by definition of efficiency:
Where:
- Efficiency, dimensionless.
- Energy liberated by burning, measured in kilowatt-hours.
Given that and , the amount of energy per year generated by a tire is:
Now, the amount of tires needed to meet the demand of then homes for one year is:
2667 tires are needed to meet the demand of ten homes for one year.
color (intensive)
density (intensive)
volume (extensive)
mass (extensive)
boiling point (intensive): the temperature at which a substance boils.
melting point (intensive): the temperature at which a substance melts.
The naswer i have is <span>A </span>spacecraft should<span> be </span>airtight<span> because space is a vacuum, and anon-</span>airtight spacecraft<span> would vent atmosphere</span>
<span>Beryllium
This is because it is in a group where Alkaline earth metals are but does not exhibit true properties of elements in that group as It exhibits amphoteric properties showing both the properties of a base and that of an acid.</span>
Explanation:
When fluorine gas reacts with calcium metal at high temperatures then it results into the formation of calcium fluoride.
Since, calcium has 2 extra electrons as its electronic distribution is 2, 8, 8, 2. Whereas each fluorine atom needs one electron to complete its octet.
Therefore, the chemical reaction equation will be as follows.