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1 year ago

Sound travels through a

Physics

2 answers:

attashe74 [19]1 year ago

8 0

Answer:

A.3.64 m

Explanation:

Because

v=(fλ)
(1382)=(380)λ
λ=3.637m~3.64m

where ,v=velocity

f=frequency 

λ=wave length 

icang [17]1 year ago

6 0

Answer:

3.64

Explanation:

the formula is Already provided which is Velocity(m/s)= frequency (HZ) × wavelength

making wavelength stand alone

wavelength= velocity/ frequency

wavelength= 1382/380

wavelength= 3.64

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The box leaves position x=0 with speed v0. The box is slowed by a constant frictional force until it comes to rest at position x

Diano4ka-milaya [45]

Answer:

$Ff=m\times \dfrac{V_o^2}{2X_1}$

Explanation:

Given that

At X=0 V=Vo

At X=X1 V=0

As we know that friction force is always try to oppose the motion of an object. It means that it provide acceleration in the negative direction.

We know that

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So the friction force on the box

Ff= m x a

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3 years ago

____ have more energy than ____. A. Radio waves; microwaves B. Ultraviolet rays; X-Rays C. Gamma rays; infrared rays D. Radio wa

Aloiza [94]

C. Gamma rays have more energy than infrared rays

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2 years ago

3. A concrete highway is built of slabs 12 m long (20o C). How wide should the expansion cracks between the slabs be (at 20o C)

lesantik [10]

Answer:

$\Delta x=2.304\times 10^{-2}\ m=2.304\ cm$ is the minimum gap between the slabs

Explanation:

Given:

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Now form the equation of thermal expansion:

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Since each slab of the highway expands by the above length so the minimum gap between the slabs to prevent buckling:

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2 years ago

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Answer:

The magnitude of the electrostatic force decreases by a factor 9

Explanation:

The electrostatic force between two charges is given by:

$F=k\frac{q_1 q_2}{d^2}$

where

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So, the electrostatic force decreases by a factor 9.

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3 years ago

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What is the correct order of the steps in the scientific method

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2 years ago

Sound travels through a ​

Sound travels through a