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3 years ago

Can all waves be distorted, deflected, or changed? Explain your response.

1 answer:

8 0

Yes, all waves can be distorted, deflected, or changed

<span>Waves are a means by which energy travels. Many different particles move in waves. </span>All waves can be changed through interference with waves of similar wavelengths.

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There is evidence that elephants communicate via infrasound, generating rumbling vocalizations as low as 14 Hz that can travel u

amid [387]

Answer:

$L = 96.2 dB$

Explanation:

As we know that the level of intensity is given as

$\beta = 10Log(\frac{I}{I_o})$

here we know

$\beta = 104 dB$

$104 = 10Log(\frac{I}{10^{-12}})$

$I = 0.025 W/m^2$

now the sound is travelling in all possible directions so we have

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

$\frac{0.025}{I_2} = \frac{10^2}{4.1^2}$

$I_2 = 4.2 \times 10^{-3} W/m^2$

now for level of sound we have

$L = 10Log(\frac{4.2 \times 10^{-3}}{10^{-12}})$

$L = 96.2 dB$

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3 years ago

A disk with a radius of R is oriented with its normal unit vector at an angle Q with respect to a uniform electric field. Which

beks73 [17]

As we know that electric flux is given by

$\phi = E.A$

$\phi = EAcos\theta$

so in order to increase the flux we have two options

1. By increasing the area of the disc

2. by changing the orientation of disc so the area of the disc is parallel to the electric field

so correct answer will be

<em> A. increasing the area of the disk</em>

7 0

3 years ago

El segundero de un reloj tiene 2cm de longitud. Determínese, para un punto en el extremo libre de la manecilla (considerando =

Zina [86]

Answer:

LET THE BODIES HIT THE FLOOOR

Step-by-step explanation:

Answer:

Step-by-step explanation:

Explanation:geman tick kokkok

qbrooooooooooooooooooooooooooooooooooooooo

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3 years ago

t's Peggy Sue's birthday and she's about to blow out the candles on her cake. Brother Roger stops the party when he shouts: "Loo

Ket [755]

Answer:

D) Roger is incorrect. Only a chemical change is taking place as evidenced by the light and heat of the burning candles.

Explanation:

- A physical change is a change in which there is no formation of new substances. Examples of physical changes are the melting or the evaporation of a substance (all phase transitions are examples of physical changes): in such cases, there is no formation of new substances.

- A chemical change is a change in which new substances form. Examples of chemical changes are the chemical reactions: for instance, when a candle burns, a reaction is taken place (oxygen is burnt, transforming into carbon dioxide + heat + light, so this is an example of chemical change).

Therefore, the correct answer is

D) Roger is incorrect. Only a chemical change is taking place as evidenced by the light and heat of the burning candles.

5 0

3 years ago

Read 2 more answers

Which law can be used to calculate the number of moles of a contained gas?

sweet [91]

The Ideal Gas Law
The Ideal Gas Law (PV = nRT) can be used if you have pressure, volume, and temperature.Apr

3 0

3 years ago