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Andrei [34K]
3 years ago
10

After measuring a sample of individuals, a researcher finds that one participant's score is three times bigger than another part

icipant's score. This pair of measurements must come from a(n) ________ scale.
Physics
1 answer:
Strike441 [17]3 years ago
3 0

Answer:

<u>Ratio</u> scale.

Explanation:

  • Ratio scale is a quantitative scale used for variable measurement which allows any researcher to compare the intervals of the measured parameter.
  • Ratio scale is the 4th level of measurement having a zero point or character of origin.
  • Ratio scale possesses most of the features of the other three variable measurement scale i.e ordinal, nominal and interval scales.
  • Nominal variables are used to name, or label a series of values.
  • Ordinal scales provide a sufficient amount of information about the order of choices, such as one would be able to understand from using a customer satisfaction survey, while the interval scales give us the order of values and also about the ability to quantify the difference between each one.
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A motorcycle has a mass of 2.50×10^2. A constant force is exerted on it for 60.0s. The motorcycles initial velocity is 6.00 m/s
Margarita [4]

The change in momentum is 5500 kg m/s

Explanation:

The change in momentum of an object is given by

\Delta p = m(v-u)

where

m is the mass of the object

v is the final velocity

u is the initial velocity

In this problem, we have:

m=2.50\cdot 10^2 kg (mass of the motorcycle)

v=28.0 m/s (final velocity)

u=6.0 m/s (initial velocity)

Therefore, the change in momentum is

\Delta p=(2.50\cdot 10^2)(28.0-6.0)=5500 kg m/s

Learn more about change in momentum:

brainly.com/question/9484203

#LearnwithBrainly

8 0
3 years ago
Calculate the percentage increase in speed of the cyclist when the power output changes from 200 W to 300 W.
Rom4ik [11]

Answer:

<em>50%</em>

Explanation:

Given

Initial power = 200W

Final power = 300W

Increment = 300 - 200 = 100W

percentage increase = increment/initial power * 100

percentage increase = 100/200 * 100%

percentage increase = 0.5 * 100

percentage increase = 50%

<em>Hence the percentage increase in speed is 50%</em>

6 0
2 years ago
What is necessary to designate a position? A. a reference point B. a direction C. fundamental units D. motion E. all of these
max2010maxim [7]

Answer:

E. all of these

Explanation:

The designation of a point in space all the points that necessary

- reference point

- a direction

- fundamental units

- a direction

- motion

all are necessary to designate a point in space. Hence option E is correct.

For example in simple harmonic motion we need to specify all the above factors of the object in order to designate the position of the object.  

8 0
3 years ago
HELP PLEASE<br><br> Fill in the blank:<br> The ? of water is 1 g/cm3.
ololo11 [35]
I think it’s density
3 0
3 years ago
Wilbur ran 1-kilometer. Then he ran 500 meters. How many meters did Wilbur run all together?
Blababa [14]
The answer is B 1,500 meters since 1 kilometer to meters is 1,000 and u add the 500
8 0
3 years ago
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