i’m pretty sure it’s , the alkali metals
<u>Complete Question:</u>
Which words or phrases describe the outer planets? Check all that apply.
1. rocky
2. gaseous
3. few moons
4. low density
5. slow rotation
<u>Answer:</u>
The outer planets of our Solar System are primarily composed of gases, dust, being bigger in size but have lower density as compared to the inner planets.
<u>Explanation:</u>
According to the observation and data received by the the astronomical entities worldwide, it's concluded that the outer planets of our Solar System; Jupitor, Satern, Uranus and Neptune.
These planets are also termed as Jovian planets or Gas Giants as they are primarily made of gases and dust. However, their inner core is made of solid heavy metals. Jupitor is the largest among all of them, having 63 so far identified moons. Its atmosphere is stormy.
Talking about the density, since these planets are made of dust particles and gases, they are of lower density. Uranus has the smallest mass inspite of being the bigger planets of the Solar System. This is because these planets have nothing or nearly nothing solid.
The statemengt is <em>false</em>. Electromgnetic waves do not require a medium to transfer energy. They can transfer energy through vacuum (empty space with nothing in it). If electrimagnetic waves needed a medium to move through from place to place, then we could never see the sun, and also it would get very cold here.
Answer:
θ₂ = 35.26°
Explanation:
given,
refractive index of air, n₁ = 1
refractive index of glass, n₂ = 1.5
angle of incidence, θ₁ = 60°
angle of refracted light, θ₂ = ?
using Snell's Law
n₁ sin θ₁ = n₂ sin θ₂
1 x sin 60° = 1.5 sin θ₂
sin θ₂ = 0.577
θ₂ = sin⁻¹(0.577)
θ₂ = 35.26°
Hence, the refracted light is equal to θ₂ = 35.26°