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Lyrx [107]
3 years ago
15

What type of research study is best for placing objects into categories? A. comparison B. relational C. simulation D. cause and

effect
Physics
1 answer:
myrzilka [38]3 years ago
7 0

Relational is the best type of research study for placing objects into categories.

Answer: Option B

<u>Explanation: </u>

Categorization is the process of making a set of objects having similar properties under a single category. The research study can be classified as quantitative, qualitative and descriptive types.

The categorisation is based on the qualitative research under the sub type of relation or classification research. Based on the relation between each objects, they will be grouped together.

If two or more objects have any kind of positive relations like similar behaviours, they will be grouped together and if their properties are different then the objects will be placed in different groups.

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A ball rolls around a circular track with an angular velocity of 4π rad/s. what is the period of the motion
BlackZzzverrR [31]
The period, T, is the time required for one revolution.

The angular velocity is 4π rad/s.
Because one revolution = 2π radians, the period is
T = (2π rad)/(4π rad/s) = 0.05 s.

Answer: 0.5 s
4 0
4 years ago
How’d the turtle cross the road
Mumz [18]

Answer:

He crawled.

Explanation: He crawled with the strength he gained from a leaf.

7 0
3 years ago
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An athlete completes 1 laps around a track with a radius of 25 meters in 180 seconds. What is the magnitude of the athlete's tan
DanielleElmas [232]

Answer:

0.872<em>m/s</em>

Explanation:

Tangential velocity is given by the formula,

v= 2\pi r/ t

In the question given,

radius= 25meters

time= 180secs

pie= 3.14

number of laps= 1

The magnitude of tangential velocity equals;

\frac{1lap* 2 *3.14 *25m}{180secs}

<em>v </em>= 157<em>m</em>/180<em>secs</em>

Therefore, the magnitude of the tangential velocity

=0.872<em>m/secs</em>

5 0
3 years ago
The laboratory is based on the assumption that at the two points of the motion being considered, the mass is at rest. What kind
Yuri [45]

Answer:

In summary kinetic energy is not necessary

Explanation:

In this problem we are asked to indicate what type of energy does not need to be considered.

As they indicate that the masses do not move, scientific energy is defined by

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In summary kinetic energy is not necessary

7 0
3 years ago
A chemical reaction takes place in which energy is absorbed. Arrange the characteristics of the reaction in order from start to
myrzilka [38]

Let’s create a diagram that shows the chemical reaction absorb energy. Take a look at the diagram I created that is attached to this answer.


Now, the start of the graph line is pretty flat and low leveled. This is the start, which is the reactants. The beginning of a chemical reaction that absorbs energy will almost always start with reactants. I labeled this this “Start: Reactants” and colored the text light green so you can easily detect the part I’m talking about.


Moving on, we see there’s a light blue arrow pointing from the the near bottom to the top curve of the graph line. This is the where the activation energy is rising. Activation energy is the difference between the reactants and products. When the graph line begins to cure, this is when the transition state is beginning. I labeled the transition state, “Transition State” and colored the text a light orange. I colored the line a light blue and also labeled it “Activation Energy” and colored the text light blue as well. I hope it’s easy enough for you to follow along. :)


Next we see that the graph line dips and then goes flat, but it doesn’t go low leveled. It says fairly higher than where it started. This is the end product. I labeled this “End: Product” and colored the text light purple so you can easily detect it.


Okay, now that that’s clear, let’s go ahead and fill in the first blank. According to the diagram we see that the start should be a reactant, and since the graph line starts out pretty low. So, this means that the first tile should be “Low energy of reactants."


Now the second tile should definitely be “Transition State.” This is because the second part in the diagram is transition state. Again, this is mainly where the activation energy is starting to rise.


As for the last and final tile, we should chose “High energy of products.” This is because the diagram is left off on a high leveled part at the end of the graph line.


So, when you place the tiles they should look something like this.


Low energy of reactants

↓

Transition state

↓

High energy of products



- Marlon Nunez

8 0
4 years ago
Read 2 more answers
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