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4 years ago

7

In what type of wave is the vibration perpendicular to the direction of travel of the wave

1 answer:

hichkok12 [17]4 years ago

8 0

In the transverse waves.

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When a guitar is tuned to adjust it pitch what is it that is changed?

suter [353]

Answer:

B) Its frequency

Explanation:

<u>The pitch of sound heard depends on its frequency of the sound wave. Frequency refers to how fast the sound wave is oscillating. </u>
A high frequency sound wave has a high pitch while a low frequency sound wave has a low pitch.
The faster the sound wave oscillates the higher the pitch. For instance, a guitar with a big heavy string will vibrate slowly and thus create a low pitch.

3 0

3 years ago

Instrumento que se utiliza para medir fuerzas

Klio2033 [76]

Answer:

Un medidor de fuerza

A force gauge for all you English speakers

Explanation:

Un medidor de fuerza es un instrumento de medición que se utiliza para medir fuerzas.

A force gauge is a measuring instrument used to measure forces.

8 0

3 years ago

The battery capacity of a lithium ion battery in a digital music player is 750 mA-h. The manufacturer claims that the player can

Oksi-84 [34.3K]

Answer:

The number of electrons is $6.3\times10^{21}\ electrons$

(D) is correct option.

Explanation:

Given that,

Battery capacity = 750 mA-h

Time t= 8 hours

Time t'=3 hours

We need to calculate the battery capacity

$Battery\ capacity=750\times10^{-3}\times3600$

$Battery\ capacity=2700\ A-s$

We need to calculate the number of electrons in 1 C Li

Using formula for number of electron

$n=\dfrac{1}{e}$

$n=\dfrac{1}{1.6\times10^{-19}}$

$n=6.25\times10^{18}\ electrons$

We need to calculate the number of electron in 2700 C

$2700\ C=2700\times6.25\times10^{18}=1.68\times10^{22}\ electrons$

The total number of electrons battery can deliver in 8 hours

$n=1.68\times10^{22}\ electrons$

We need to calculate the number of electron in 3 hours

Using formula of number of electrons

$n=\dfrac{n\times t'}{t}$

Put the value into the formula

$n=\dfrac{1.68\times10^{22}\times3}{8}$

$n=6.3\times10^{21}\ electrons$

Hence, The number of electrons is $6.3\times10^{21}\ electrons$

8 0

4 years ago

Read 2 more answers

Covalent bonds ___ conduct electricity well. <br><br> Always <br> Usually<br> Rarely<br> Never

mr_godi [17]

They rarely conduct electricity well.

4 0

3 years ago

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How is energy sent from Earth to space?

Nostrana [21]

It might be radiation and reflection but I’m not sure

8 0

3 years ago

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