gilbertej437
22.08.2019 •
Physics
Rays of the sun are seen to make a 34.7° angle to the vertical beneath the water. at what angle above the horizon is the sun?
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Ответ:
49.19°
Explanation:
θ₁ = Angle of incidence
θ₂ = Angle of refraction = 34.7°
n₁ = Refractive index of air = 1.0003
n₂ = Refractive index of water = 1.33
From Snell's Law
In order to find the angle of sun above horizon we have to subtract the angle
90 - 49.19 = 40.81
The sun is at an angle of 40.81° above the horizon.
Ответ:
Del enunciado tenemos lo siguiente:
Una persona toma 4.5L de agua por día.Sabemos que un año tiene 365 días, por lo que dicha persona bebe anualmente:
4.5 x 365 = 1642.5L de agua anualmente
Sabemos que 1m³ equivale a 1000L, por lo que aplicando regla de tres:
2. el costo del agua bebida en ese tiempo.Del enunciado tenemos lo siguiente:
El precio de la botella de agua de 750 ml es de $2500.De esta manera, bebió la siguiente cantidad de botellas:
Entonces, le costo de agua que bebió es: