When it comes to optics, the most basic equation to use is the Snell's Law:
n₁ sin θ₁ = n₂ sin θ₂
where θ₁ is the angle of incidence, θ₂ is the angle of refraction, and n are the index of refractions depending on the type of medium.
This equation is used when light strikes from one medium to another and you want to determine the angle of refraction. For example, as light travels from air to water, the light bends as it strike the water. The observable change you can see is that things tend to look bigger when viewed from afar.
In this case, the first medium is air which has an index of refraction of 1. So, n₁ = 1. Then, n₂ is for the glass which is equal to 25°. Substituting the values,
(1) sin 25° = (1.5) sin θ₂
θ₂ = 16.36°
<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.
Answer:
Explanation:
From the question we are told that:
Mass
Potential difference
Magnitude
Generally the equation for Velocity is mathematically given by
Generally the equation for Force is mathematically given by
Where
Therefore
Answer:
Alice Distance = 100 meters
Peter's Distance = 3 km
Alice Displacement and Peter's displacement are both 100 meters upwards.
Explanation:
To solve this question, we have to first define distance and displacement.
Distance is simply the measurement of the sum of all paths travelled from one point to another while displacement is measurement of the shortest distance from initial point to final point.
Now, Alice and Peter are moving from the same point.
Alice distance travelled is 100 meters.
Also, her displacement will be 100 meters because it is the shortest distance to the summit of the cliff.
Now, for Peter, he decides to take a longer route which is 3 km in distance.
However, the shortest path which is the displacement is still 100 meters.
Thus, Peter's displacement is 100 meters.
The gram (g)
a nickel weighs 5 grams, and a raisin weighs approximately 1 gram.
There is also the kilogram(kg), or 1000 grams