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Elena-2011 [213]
3 years ago
13

Which of these temperatures is likely when a container of water at 20° C is mixed with water at 28° C?

Physics
1 answer:
Sliva [168]3 years ago
8 0
Ok when two differing temperatures are mixed together with no special circumstances indicated they will form a equilibrium temperature between the two differing temperature by effectively "sharing" their energy. So the answer should be B.23*C
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Answer: softer

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g The international space station has an orbital period of 93 minutes at an altitude (above Earth's surface) of 410 km. A geosyn
krok68 [10]

Answer:

r = 4.21 10⁷ m

Explanation:

Kepler's third law It is an application of Newton's second law where the forces of the gravitational force, obtaining

            T² = (\frac{4\pi }{G M_s} ) r³             (1)

           

in this case the period of the season is

            T₁ = 93 min (60 s / 1 min) = 5580 s

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for the satellite

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if we substitute in equation 1

            T² = K r³

            K = T₁²/r₁³

            K = \frac{ 5580^2}{ (6.780 10^6)^2}

            K = 9.99 10⁻¹⁴ s² / m³

we can replace the satellite values

            r³ = T² / K

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this distance is from the center of the earth

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Kyra and Pari are timing how long it takes for 1 g of sugar to dissolve in hot water. Kyra records a time of 24.3 seconds. Pari
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<h3>Answer:</h3><h3>we can say that:-</h3>
  1. A reading with more no of significant figures is considered to be more precise.
  2. Kyra recorded a reading of 24.3 sec. Since all non 0 digits are considered to be significant this reading has 3 significant figures.
  3. Pari recorded a reading of 24 sec. Since all non 0 digits are considered to be significant this reading has 3 significant figures.
<h3>hence we can say that kyra's reading has more significant figures nd so it is more precise.</h3>

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At 5.0 minutes, the temperature of the water reaches 100 °C. The volume of the water in the urn
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Answer:

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Explanation:

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Answer:

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