Which set of data does not contain any outliers? 113, 115, 103, 154, 109, 111, 119 141, 151, 111, 142, 149, 140, 150 99, 103, 91
bulgar [2K]
<h3><u> Answer;</u></h3>
99, 103, 91, 104, 109, 107, 97
<h3><u>Explanation;</u></h3>
- <em><u>An outlier is a data value or an observation point which is far or distant from the other observation. It is is normally much smaller or larger than most of the other values in a set of data.</u></em>
- Outlier occurs as a result of variability in the measurement or as a result of an experimental error. Outliers affect statistical analysis. They affect the mean value of the data, they have a little effect on the median or the mode of a given set of data.
Answer:
a) 1.13 10-8 T. b) +y direction
Explanation:
a)
For an electromagnetic wave propagating in a vacuum, the wave speed is c = 3. 108 m/s.
At a long distance from the source, the components of the wave (electric and magnetic fields) can be considered as plane waves, so the equations for them can be written as follows:
E(z,t) = Emax cos (kz-ωt-φ) +x
B(z,t) = Bmax cos (kz-ωt-φ) +y
In an electromagnetic wave, the magnetic field and the electric field, at any time, and at any point in space, as the perturbation is propagating at a speed equal to c (light speed in vacuum), are related by this expression:
Bmax = Emax/c
So, solving for Bmax:
Bmax = 3.4 V/m / 3 108 m/s = 1.13 10-8 T.
b) As we have already said, in an electromagnetic wave, the electric field and the magnetic field are perpendicular each other and to the propagation direction, so in this case, the magnetic field propagates in the +y direction.
Answer:
The reason you feel weightless is because there is no force pushing against you, since you are not in contact with anything. Gravity is pulling equally on all the particles in your body. This creates a sensation where no forces are acting on you and you feel weightless.
Answer:
for reasoning you could put -> the line is at the top at the left handed sided of the chart (also the beginning) slopes down towards the very bottom right handed side of the chart, symbolising less force as distance goes.
