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Komok [63]
3 years ago
13

If you see Sagittarius high in your night sky on June 20 and today is your birthday, what is your zodiac constellation?

Physics
1 answer:
marta [7]3 years ago
8 0

Answer:

Gemini

Explanation:

Zodiac Constellation or Sun sign is the constellation in which the Sun resides on the date of birth of a person. Throughout the year the Sun crosses across 12 constellations thus there are 12 Sun-signs. Though astronomically the Sun crosses across 13 constellations so there should be 13 zodiacs but most of the astrologers do not accept this. On the date of June 20, the Sagittarius which is a summer constellation and a zodiac can be seen high up in the sky in the night time. At this time the Sun will be in a constellation which is almost opposite to Sagittarius in the celestial sphere. That constellation is Gemini. Thus for a person born on 20 June, zodiac will be Gemini.

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8 0
3 years ago
A hot-air balloon consists of a basket hanging beneath a large envelope filled with hot air. A typical hot-air balloon has a tot
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Answer:

1.05045 kg/m³

Explanation:

\rho_a = Density of air = 1.26 kg/m³

\rho_{ha} = Density of hot air

m_a = Mass of balloon = 539 kg

g = Acceleration due to gravity = 9.81 m/s²

v = Volume of air in balloon = 2.62\times 10^3\ m^3

The net force on the balloon will be

F_n=(\rho_a-\rho_{ha})vg

Also

F_n=m_ag

\\\Rightarrow 549g=(\rho_a-\rho_{ha})vg\\\Rightarrow 549=(1.26-\rho_{ha})2.62\times 10^3\\\Rightarrow -\rho_{ha}=\frac{549}{2.62\times 10^3}-1.26\\\Rightarrow \rho_{ha}=1.05045\ kg/m^3

The density of hot air inside the envelope is 1.05045 kg/m³

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