Forces that are equal but oppistes are____________

What type of matter is a glass of iced tea?

Maru [420]

Answer:

a

Explanation:

Iced tea is a mixture because it contains different compounds, such as tea leaves and water.

6 0

3 years ago

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It's a frightening idea, but what would be the sound intensity level of 100 physics professors talking simultaneously

Svetlanka [38]

The sound intensity level of 100 physics professors talking simultaneously is equal to 72 decibel.

<u>Given the following data:</u>

Sound intensity = 52 dB.

<h3>What is sound intensity?</h3>

Sound intensity can be defined as a measure of the power of a sound wave per unit area. Thus, sound intensity is a quantity that can be used to measure the energy of sound and its unit of measurement is Watts per square meter.

<h3>How to calculate the sound intensity level.</h3>

Mathematically, sound intensity level is given by this formula:

$\beta = 10 log(\frac{I}{I_{ref}} )$

<u>Note:</u> The reference value of sound intensity is equal to $1.0 \times 10^{-12}\;W/m^2$

Thus, the sound intensity for one (1) professor is given by:

$I_1 = 1.0 \times 10^{-12} \times 10^{5.2}\\\\I_1=1.585 \times 10^{-7}\;W/m^2$

For 100 professors, the sound intensity is:

$I_{100} = 1.585 \times 10^{-7} \times 100\\\\I_{100}=1.585 \times 10^{-5}\;W/m^2$

Substituting the parameters into the formula, we have;

$\beta = 10 log(\frac{1.585 \times 10^{-5}}{1.0 \times 10^{-12}})\\\\\beta = 10 log(15.58 \times 10^{6})\\\\\beta = 10 \times 7.2\\\\\beta =72\;dB$

Read more on sound intensity here: brainly.com/question/17062836

<u>Complete Question:</u>

One physics professor talking produces a sound intensity level of 52 dB. It's a frightening idea, but what would be the sound intensity level of 100 physics professors talking simultaneously?

7 0

2 years ago

Using no more than 3 sentences, explain how a motor and generator are related.

kogti [31]

The Electric Motor and Generator are differentiated on various factors like the main principle of working or function of the motor and generator. Consumption or production of electricity, its driven element, the existence of the current in the winding. Fleming’s rule followed by the motor and generator.

3 0

3 years ago

Which statement correctly summarizes Wegener’s theory of continental drift?

Bezzdna [24]

Answer:

Over tens of millions of years, the giant supercontinent Pangaea began to slowly drift apart, forming the continents as they are known today.

Explanation:

8 0

3 years ago

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Care sunt marimile ce caracterizează nucleul?

Yakvenalex [24]

Answer:

Sub stratul exterior lichid-metal al miezului Pământului se află o bilă solidă de fier și aliaj de nichel cu aproximativ 1,60 km în diametru.

Explanation:

4 0

3 years ago

Forces that are equal but oppistes are_____________ forces