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kiruha [24]
3 years ago
10

What do all electromagnetic waves have in common?

Physics
1 answer:
aev [14]3 years ago
7 0
4) They have non-moving magnetic fields.
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Which measure of dispersion indicates the extent to which each individual score in a data set varies from the mean of that set?
vichka [17]

Answer:

Option 2 - Standard deviation

Explanation:

To find : Which measure of dispersion indicates the extent to which each individual score in a data set varies from the mean of that set?

Solution :

Standard deviation is defined as,

  • It is a mathematical measure that is used to evaluate the difference between the mean value of a set of number and each value in the group.
  • It is calculated as the square root of variance by determining the variation between each data point relative to the mean.

The measure of dispersion that indicates how much scores in a sample vary around the mean of the sample is the standard deviation.

Therefore, option 2 is correct.

3 0
3 years ago
Explain the conditions in which a person can or can’t hear an echo. Which of the following materials would be the least efficien
shutvik [7]

Answer:

plaster............

Explanation:

3 0
3 years ago
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The London Eye, which is a giant Ferris wheel, has a diameter of 135 m. It revolves at a constant rate and takes 30 minutes to c
Maurinko [17]

Answer:

Linear velocity of a rider in a capsule that is located at the perimeter of the wheel = 0.2355 m/s

Explanation:

Diameter = 135 m

Radius, r = 0.5 x 135 = 67.5 m

It revolves at a constant rate and takes 30 minutes

Period, T = 30 minutes= 1800 s

\texttt{Angular velocity, }\omega =\frac{2\pi }{T}=\frac{2\pi }{1800}=3.49\times 10^{-3}rad/s

Linear velocity, v = radius x angular velocity

                      v = 67.5 x 3.98 x 10⁻³ = 0.2355 m/s

Linear velocity of a rider in a capsule that is located at the perimeter of the wheel = 0.2355 m/s

6 0
3 years ago
Joint replacement are often made of the element titanium. Which type of matter is titanium
svet-max [94.6K]

Answer: C. a pure substance

3 0
3 years ago
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1. Newton's 3rd Law states...
Vika [28.1K]

Answer:

C

Explanation:

There's a reason newton's 3rd law is called action-reaction :D

A - 1st law/inertia

B - 2nd law/f=ma

5 0
3 years ago
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