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3 years ago

Why is it important to know the location of active and inactive faults in our country?

Physics

1 answer:

Andrew [12]3 years ago

5 0

Answer:

I hope this helps.

Explanation:

It's important to know the location of an active fault in order to determine the magnitude of the expected earthquake. There is a chance than an inactive fault can become active again. It's important that we take the locations into account in order to be prepared and ready for if it occurs.

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Part complete Sound with frequency 1240 Hz leaves a room through a doorway with a width of 1.11 m . At what minimum angle relati

Sedbober [7]

Answer:

14.43° or 0.25184 rad

Explanation:

v = Speed of sound in air = 343 m/s

f = Frequency = 1240 Hz

d = Width in doorway = 1.11 m

Wavelength is given by

$\lambda=\frac{v}{f}\\\Rightarrow \lambda=\frac{343}{1240}\\\Rightarrow \lambda=0.2766\ m$

In the case of Fraunhofer diffraction we have the relation

$dsin\theta=\lambda\\\Rightarrow \theta=sin^{-1}\frac{\lambda}{d}\\\Rightarrow \theta=sin^{-1}\frac{0.2766}{1.11}\\\Rightarrow \theta=14.43^{\circ}\ or\ 0.25184\ rad$

The minimum angle relative to the center line perpendicular to the doorway will someone outside the room hear no sound is 14.43° or 0.25184 rad

6 0

3 years ago

Why are lunar calendars not more widely used today?

Nookie1986 [14]

The seasons affect the scheduling of far more events the moon phases do.

6 0

3 years ago

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WHOEVER ANSWERS RIGHT GETS BRAINLY!!

Mademuasel [1]

Answer:

I think the answer is A

Explanation:

I need this brainliest answer please

6 0

3 years ago

Assume that the same amount of current passes through the electromagnets shown. Identify which electromagnet is stronger than th

hodyreva [135]

First electromagnet

Explanation:

The first electromagnet is the strongest and it is stronger than the given electromagnet above.

An electromagnet is a temporary magnet made by passing current through a wire wounded round an iron core or metallic core.

When current is passed through, the metal becomes magnetic.
The strength of the electromagnet depends on the number of coil round the metal core and also the intensity of current passed through it.
The higher the number of coils wounded round the metal core, the stronger the electromagnet that will be produced.
Also, the higher the intensity of electricity passed through the wire, the stronger it is.

learn more:

Electromagnet brainly.com/question/2191993

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3 years ago

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If the object on the right gained mass so that it had as much mass as the object on the left, how would the gravitational force

just olya [345]

The object would stay constant

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3 years ago