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3 years ago

What would a drummer do to make the sound of a drum give a note of lower pitch?

Physics

2 answers:

wel3 years ago

6 0

Hitting it in the middle will make a lower pitch. Hitting in the corner will make a higher pitch.

stiks02 [169]3 years ago

5 0

A drummer would loosen the drum skin in order to make the sound of a drum give a note of lower pitch.
However, I am not entirely sure.

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Why do the waves have different speeds in different layers of Earth's surface?

Genrish500 [490]

Answer:

Material's density

Explanation:

Seismic waves travel at different rates of speed based on a material's density. Hopefully, you understand that the Earth has three main layers: the crust, mantle, and core. Earthquake waves move faster through solids.

6 0

2 years ago

You are trying to overhear a juicy conversation, but from your distance of 20.0 m , it sounds like only an average whisper of 30

12345 [234]

Answer:

r₂ = 0.2 m

Explanation:

given,

distance = 20 m

sound of average whisper = 30 dB

distance moved closer = ?

new frequency = 80 dB

using formula

$\beta = 10 log(\dfrac{I_1}{I_0})$

I₀ = 10⁻¹² W/m²

now,

$30 = 10 log(\dfrac{I_1}{10^{-12}})$

$\dfrac{I_1}{10^{-12}}= 10^3$

$I_1= 10^{-8}\ W/m^2$

to hear the whisper sound = 80 dB

$80 = 10 log(\dfrac{I_2}{10^{-12}})$

$\dfrac{I_2}{10^{-12}}= 10^8$

$I_2= 10^{-4}\ W/m^2$

we know intensity of sound is inversely proportional to square of distances

$\dfrac{I_1}{I_2}=\dfrac{r_2^2}{r_1^2}$

$\dfrac{10^{-8}}{10^{-4}}=\dfrac{r_2^2}{20^2}$

$10^{-4}=\dfrac{r_2^2}{20^2}$

r₂ = 0.2 m

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3 years ago

What type of heat does not require matter?

Lana71 [14]

It would be Thermal Radiation

4 0

2 years ago

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Witch sentence states Newton third law

Dominik [7]

Answer:

For every action, there is an equal and opposite reaction.

Explanation:

Physics helps alot lol

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3 years ago

Walking along a 6-meter beam without falling helps to develop __________.

IrinaVladis [17]

C is correct answer.

Walking along a 6 meter beam without falling helps to develop balance.

Hope it helped.

-Charlie

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3 years ago

Read 2 more answers