3 years ago

Choose the letter of the best description of the nature of light:

Physics

1 answer:

Andreas93 [3]3 years ago

6 0

C. Light sometimes behaves like waves and at other times like particles.

You might be interested in

A person standing a certain distance from an airplane with four equally noisy jet engines is experiencing a sound level of 145 d

Katyanochek1 [597]

Answer:

The sound level is 138.97 dB.

Explanation:

Given that,

Sound level L= 145 dB

We need to calculate the intensity

Using formula of sound intensity

$L=10\log(\dfrac{I}{I_{0}})$

Put the value into the formula

$145=10\log(\dfrac{I}{I_{0}})$

$\log(\dfrac{I}{I_{0}})=\dfrac{145}{10}$

$\log(\dfrac{I}{I_{0}})=14.5$

$\dfrac{I}{I_{0}}=10^{14.5}$

$I=10^{14.5}\times I_{0}$

$I=10^{14.5}\times10^{-12}$

$I=316.2$

We need to calculate the noise of one engine

Using formula of intensity

$I'=\dfrac{I}{4}$

Put the value into the formula

$I'=\dfrac{316.2}{4}$

$I'=79.05$

We need to calculate the intensity level due to one engine

Using formula of sound intensity

$L'=10\log(\dfrac{I'}{I_{0}})$

$L'=10\log(\dfrac{79.05}{10^{-12}})$

$L'=138.97\ dB$

Hence, The sound level is 138.97 dB

5 0

2 years ago

What is the main cause of ocean currents? Question 2 options:

lions [1.4K]

Coriolis effect

That’s what I remember from whenever I was in that unit.

7 0

3 years ago

Read 2 more answers

1. A soccer ball is kicked at ground level at 30 m/s at an angle of 53° to the horizontal. a. How far away does it land? b. Ho

goblinko [34]

6 0

3 years ago

Are electrons lower in mass than neutrons

tamaranim1 [39]

Answer:

ya I just looked it up on Google

3 0

2 years ago

Read 2 more answers

1. Does a fish appear closer or farther from a person wearing swim goggles with an air pocket in front of their eyes than the fi

pychu [463]

Answer: I believe farther. Correct me if I am wrong

Explanation:

3 0

2 years ago

Read 2 more answers