Given data:
- It is a graphical display where the data is grouped in to ranges
- A diagram consists rectangles, whose area is proportional to frequency of a variable and whose width is equal to the class interval.
- It is an accurate representation of the distribution of numerical data.
<em>From Figure:</em>
Each box in the graph (small rectangle box) is assumed to be one download. So, in the graph the time between 8 p.m to 9 p.m, the number of downloads are 8.75 approximately (because the last box is incomplete, therefore 8 complete boxes and 9th is more than half).
<em>So, We conclude that the total number of downloads are approximately 9 in the time span of 8 p.m. to 9 p.m.</em>
A, electromagnetic radiation
Answer:
why compasses point towards the north and south poles of the earth.
Explanation:
hope it helps!!
To solve the problem it is necessary to apply the Malus Law. Malus's law indicates that the intensity of a linearly polarized beam of light, which passes through a perfect analyzer with a vertical optical axis is equivalent to:
Where,
indicates the intensity of the light before passing through the polarizer,
I is the resulting intensity, and
indicates the angle between the axis of the analyzer and the polarization axis of the incident light.
Since we have two objects the law would be,
Replacing the values,
Therefore the intesity of the light after it has passes through both polarizers is
Answer:
14.4 m/s
Explanation:
= initial velocity of the projectile at the time of launch = 25 m/s
= initial angle of launch = 60°
= initial velocity of the projectile in horizontal direction= = 25 Cos60 = 12.5 m/s
= final velocity of the projectile =
= final angle = 30°
= final velocity of the projectile in horizontal direction= = Cos30
we know that the velocity along the horizontal direction remains constant, hence
=
Cos30 = 12.5
= 14.4 m/s