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Step-by-step explanation:
Answer:
...what?
Step-by-step explanation:
≥≧≦≤
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<em>aM gObLiN gImMiE yE pOiNtS! </em> ( thanks )
10% of 320 = 32
So 9.8% of 320 should be some number between 31 and 32
Answer:
1.778 times more or 16/9 times more
Step-by-step explanation:
Given:
- Mirror 1: D_1 = 8''
- Mirror 2: D_2 = 6"
Find:
Compare the light gathering power of an 8" primary mirror with a 6" primary mirror. The 8" mirror has how much light gathering power?
Solution:
- The light gathering power of a mirror (LGP) is proportional to the Area of the objects:
LGP ∝ A
- Whereas, Area is proportional to the squared of the diameter i.e an area of a circle:
A ∝ D^2
- Hence, LGP ∝ D^2
- Now compare the two diameters given:
LGP_1 ∝ (D_1)^2
LGP ∝ (D_2)^2
- Take a ratio of both:
LGP_1/LGP_2 ∝ (D_1)^2 / (D_2)^2
- Plug in the values:
LGP_1/LGP_2 ∝ (8)^2 / (6)^2
- Compute: LGP_1/LGP_2 ∝ 16/9 ≅ 1.778 times more
Answer:
4 gal 2 pt
Step-by-step explanation:
8 pt = 1 gal
7 gal 1 pt = 57 pt
2 gal 7 pt = 23 pt
57 pt - 23 pt = 34 pt
34 pt = 4 gal 2 pt
