Sound from a source vibrating at frequency 200 Hz travels at the speed of 300 m/s in air.Wavelength of the sound is (in m/s)

Which careers typically require post-secondary education other than vocational school? Check all that apply. Boiler Operation Co

In-s [12.5K]

Answer: Construction management, Architecture, Civil Drafting.

Explanation: hope this helps :)

5 0

3 years ago

Read 2 more answers

Which has greater value, a newton of gold on earth or a newton of gold on the moon?

jek_recluse [69]

The moon, because the acceleration due to gravity is less.

4 0

3 years ago

Which of the following statements describes Newton's first law?

jeka94

Answer:

F = MA

Explanation:

OP you didn't give us any examples, but force equals mass times acceleration is Newton's First Law.

Dropping a ball (mass) from the top of a building can show gravity, a form of acceleration.

5 0

3 years ago

A wire is stretched between two posts. Another wire is stretched between two posts that are four times as far apart. The tension

Elena-2011 [213]

Answer:

Therefore,

The speed of the wave on the longer wire is 95 m/s.

Explanation:

Given:

For Short wire, speed is

$v_{s}=190\ m/s$

Let length of Short and Longer wire be $L_{s}\ and\ L_{l}$ such that

$L_{l}=4\times L_{s}$

To Find:

$v_{l}=?$ Speed on the longer wire

Solution:

The speed of a pulse or wave on a string under tension can be found with the equation,

$v=\sqrt{\dfrac{F_{T}\times L}{m}$

Where,

$F_{T}$ = Tension on the wire

L = Length of Sting

m = mass of String

So here we have,

$F_{T}$ = same

$L_{l}=4\times L_{s}$

Therefore,

$v_{s}=\sqrt{\dfrac{F_{T}\times L_{s}}{m}$ ......equation ( 1 )

And

$v_{l}=\sqrt{\dfrac{F_{T}\times L_{l}}{m}$ .......equation ( 2 )

Dividing equation 1 by equation 2 and on Solving we get

$\dfrac{v_{s}}{v_{l}}=\sqrt{\dfrac{L_{s}}{L_{l}}}$

Therefore,

$v_{l}=v_{s}\sqrt{\dfrac{4\times L_{s}}{L_{s}}}=190\times 2=380\ m/s$

Therefore,

The speed of the wave on the longer wire is 95 m/s.

8 0

4 years ago

An unbalanced electric charge is sometimes called a

kirill [66]

Atoms with unbalanced electrical charges are called ions.

Those with positive charges are called cations.

Those with negative charges are called anions.

7 0

3 years ago