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pentagon [3]
3 years ago
9

Professor Martinez would like to describe the amount of variation there is in his data set. Which of the following should he cal

culate?
A. mean
B. mode
C. range
D. median
Physics
2 answers:
Finger [1]3 years ago
7 0
Is it not standard deviation? or am i just dumb lol
bulgar [2K]3 years ago
7 0

Answer:

Range

Explanation:

He should calculate range. Range is used to describe amounts of variation of a data. It is the difference between the highest value and the lowest value of a data. Range measures precision. It allow us to check the values of samples of set of data varies slightly or greatly from each other so as to be able to apply corrective and preventive measures.

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This is a question that would have literally have taken two seconds to look up on google but the answer is 1.88 years.

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3 years ago
A 2.74 g coin, which has zero potential energy at the surface, is dropped into a 12.2 m well. After the coin comes to a stop in
VikaD [51]

Answer:

B. - 0.328

Explanation

Potential Energy:<em> This is the energy of a body due to position.</em>

<em>The S.I unit of potential energy is Joules (J).</em>

<em>It can be expressed mathematically as</em>

<em>Ep = mgh........................... Equation 1</em>

<em>Where Ep = potential energy, m = mass of the coin, h = height, g = acceleration due to gravity,</em>

<em>Given: m = 2.74 g = 0.00274 kg, h = 12.2 m, g = 9.8 m/s²</em>

Substituting these values into equation 1

Ep = 0.00274×12.2×9.8

Ep = 0.328 J.

Note: Since the potential energy at the surface is zero, the potential Energy with respect to the surface = -0.328 J

The right option is B. - 0.328

<em />

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3 years ago
A giraffe is slowly walking across a field. Is it balanced or unbalanced?
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Your answers are correct
3 0
3 years ago
Write the formula of mechanical advantage​
Zanzabum

Answer:

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7 0
2 years ago
A 0.49-kg cord is stretched between two supports, 7.8m apart. When one support is struck by a hammer, a transverse wave travels
katovenus [111]

To solve this problem we will apply the laws of Mersenne. Mersenne's laws are laws describing the frequency of oscillation of a stretched string or monochord, useful in musical tuning and musical instrument construction. This law tells us that the velocity in a string is directly proportional to the root of the applied tension, and inversely proportional to the root of the linear density, that is,

v = \sqrt{\frac{T}{\mu}}

Here,

v = Velocity

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As we know that speed is equivalent to displacement in a unit of time, we will have to

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T = (\frac{7.8}{0.83})^2 (\frac{0.49}{7.8})

T = 5.54N

Therefore the tension is 5.54N

8 0
3 years ago
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