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Vesnalui [34]
3 years ago
9

How does the medium which a sound wave travels, affect a sound

Physics
1 answer:
arlik [135]3 years ago
6 0

The density of <u>a medium</u> is the second factor that <u>affects the speed of sound.</u>

Please vote <u>Brainliest</u> (:

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If a driver is tired, the thinking distance will be less. True or false.why?
Evgesh-ka [11]

Answer:

False

Explanation:

When a driver is impaired the brain will need an extra second or two to wake up, after it does wake up it tends to drift off regularly.

8 0
3 years ago
A small first-aid kit is dropped by a rock climber who is descending steadily at -1.25 m/s. After 2.5 seconds, what is the veloc
postnew [5]
The genuine answer here

7 0
3 years ago
Explain why, if you go to the moon, your weight would change but your mass wouldnt
Evgen [1.6K]
There's little gravity so your weight would change but not your mass
3 0
3 years ago
The size, shape, and color of an object would be an example of a
Murrr4er [49]

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physical change

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4 0
3 years ago
Determine the total moment of inertia of a merry-go round with 5 children sitting on it. Of the five children, four are seated a
BaLLatris [955]

Answer:

Explanation:

Given that,

We have five children.

Each of mass m =30kg

They sit on a merry go round

Mass of Merry go round M= 150kg

Radius of Merry go round is r =2m

Four children sit at the edge of the merry go round but one child sit at the centre.

The four child that sit at the edge are 2m from the centre of the merry go round but the one at the centre is 0m from the centre

Moment of inertia?

Moment of inertia is given as

I=Σmi•ri²

For the question, the moment of inertia is the combination of inertial of child and the merry go round

I= I(merry go round) + I(four child)+ I(last child)

The merry go round is assumed to be a solid cylinder, so it is going to have the moment of inertia of solid cylinder

Then,

I(merry go round ) =½ Mr²

Also, Four of the child has the same moment of inertia, they are 2m form the centre of the merry go round why the last child has no moment of inertia

I= I(merry go round) + I(four child) +I(last child )

I= ½Mr² + 4mr² + mr'²

I = ½ × 150 ×2² + 4×30×2² + 30×0²

I = 300 +480+0

I = 780 kgm²

7 0
3 years ago
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