the state or quality of being efficient.
"greater energy efficiency"
Answer
Efficiency is the ability to avoid wasting materials, energy, efforts, money, and time in doing something or in producing a desired result.
Answer:
1000
Explanation:
If we model the pencil as a cylinder:
V = π r² h
Or, in terms of diameter:
V = π/4 d² h
If we multiply d and h by 10:
V = π/4 (10 d)² (10 h)
V = 1000 (π/4 d² h)
The volume increases by a factor of 1000.
I don’t know how air would be an insulator so I’m guessing that one isn’t
According to law of conservation of mass, mass of reactant = mass of products
So answer is C
Hope it helps!
Natural sources of light include our sun and other stars, where the source of energy is nuclear energy (recall that the moon does not produce light but merely reflects sunlight), lightning, where the source is electrical, and fire, where the energy source is chemical.
