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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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Many fundamental laws of physics and chemistry can be formulated when doing this.
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Define First Condition of Equilibrium ??​
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9) Of all the types of light the Sun gives off, it emits the greatest amount of light at visible wavelengths of light. If the Su
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Answer:

*  most of the emission would be in the infrared part, the visible radiation would be very small.

*total intensity of the semition decreases that the intensity depends on the fourth power of the temperature

Explanation:

The radiation emitted by the Sun is approximately the radiation of a black body, if the Sun were to cool, the maximum emission wavelength changes

          λ T = 2,898 10⁻³

          λ = 2,898 10⁻³ / T

if the temperature decreases the maximum wavelength the greater values ​​are moved, that is to say towards the infrared. Therefore the emission curve also moves, in this case most of the emission would be in the infrared part, the visible radiation would be very small.

Furthermore, the total intensity of the semition decreases that the intensity depends on the fourth power of the temperature according to Stefan's law

           P = σ A eT⁴

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3 years ago
You place a 0.17 kg can of soup and a 0.31 kg jar of pickles on the kitchen counter, separated by a distance of 0.42 m. What is
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1.984 \times 10^{-11} \mathrm{N} \text { is the force of gravity exerted on the jar of pickles. }

<u>Explanation</u>:

According to Newton's third law that each force has an equal and opposite reaction force in this case both of the jars will exert the same force an each other

. The force is given by

\mathrm{F}=\frac{G \times M_{1} \times M_{2}}{r^{2}}

Where, F = force, G=\text { gravitational constant }=\left(6.67 \times 10^{-11}\right), mass \left(\mathrm{M}_{1}\right)=0.17 \mathrm{kg}, mass \left M_{2}= 0.31 \mathrm{kg} and Distance(r) = 0.42 m.

Substitute the values in the formula.

\mathrm{F}=\frac{6.67 \times 10^{-11} \times 0.17 \times 0.31}{0.42^{2}}

\mathrm{F}=\frac{3.51 \times 10^{-12}}{0.176}

\mathrm{F}=1.984 \times 10^{-11} \mathrm{N}

\text { The force of gravity exerted on the jar of pickles is } 1.984 \times 10^{-11} \mathrm{N} \text { . }

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