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pogonyaev
3 years ago
14

What two factors affect the speed of a sound wave as it travels through a medium?

Physics
2 answers:
Tju [1.3M]3 years ago
7 0
<h3><u>Answer;</u></h3>

<em>The type of medium and the temperature of the medium</em>

<h3><u>Explanation;</u></h3>
  • <em><u>Wave is a transmission of a disturbance from a given point to another point. It involves the transfer of energy from one point to another through a material medium.</u></em> The speed of waves in a given medium depends on several factors which includes the type of the medium, temperature, and density among others.
  • <em><u>The type of medium affects the speed of the wave</u></em> due to the differences in the distances between particles of various material media, i.e. <em><u>sound travels faster in solids than in gases because solid particles are much closer together, so they collide  and vibrate more frequently allowing the sound to travel faster.</u></em>
  • Additionally, <em><u>temperature affects the speed of the wave</u></em> such that the temperature of a given medium determines the vibration of particles. <em><u>High temperature increases the kinetic energy of particles in a given medium thus making them vibrate faster </u></em>thus enhancing the transmission of a wave.
GalinKa [24]3 years ago
6 0
The energy transferred by a sound wave is independent of its speed. However, the type of medium affects this due to the differences in the distances between particles in different media, i.e. sound travels faster through solids than gases as the solid particles are much closer together, so they collide more frequently allowing the sound to travel faster. Additionally, temperature affects the distances between particles in a medium, increasing them with increasing heat, causing slower sound travel. Therefore the answer is the third option.
Hope this helps!
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Later research indicated that electric current is actually the flow of ____
iren [92.7K]

Answer:

Electrons.

Explanation:

Electricity was discovered before the discovery of electrons by J.J Thompson in 1896. Before the electron, it was thought that it is the positive ions that move through the wire and carry current—that's why today the conventional current represents the flow of positive charges.

After J.J Thompson's discovery of the electrons, it was realized that it is the electrons that actually carry the current through the conductor. But changing the direction of the conventional current didn't seem appropriate, and that's why the convention continues to be used to this day—reminding us that once it were the positive ions that were thought to carry the current.

6 0
3 years ago
A car moves 8 km from home to school and then back to the home. a) Calculate the Distance covered by this car. b) What is the Di
Sveta_85 [38]

Explanation:

Distance covered = Total distance travelled by the car

Since the car travels to school and back to home again,

Total diatance covered = 8 + 8 = 16km

Displacement = Shortest distance between start point and destination.

Since, the car returns back to home from school,

the start and destination point are same.

So Displacement = 0

8 0
3 years ago
When a person is standing upright, the weight of anything being lifted and carried in the hands is first reflected onto the:
hichkok12 [17]

Pelvic girdle

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One is located on the left side of the body and the other is located on the right. They come together to make the pelvic girdle, a portion of the pelvis. The hip bones are attached to the upper portion of the skeleton at the sacrum.
The pelvic girdle's main function is to support the upper body's weight while seated and transfer that weight to the lower limbs while standing. For the muscles in the trunk and lower limbs, it functions as attachment point.

To learn more about pelvic girdles please visit -
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8 0
2 years ago
A dumbbell-shaped object is composed by two equal masses, m, connected by a rod of negligible mass and length r. If I1 is the mo
Sati [7]

Answer:

The correct answer to the following question will be Option A (I1 > I2).

Explanation:

Method for moment of inertia because of it's viewpoint including object at a mean distance "r" from the axis is,

⇒ mr²

<u>For Case 1:</u>

Let the length of a rod be "r".

The axis passes via the middle of that same rod so that the range from either the axis within each dumbbell becomes "\frac{r}{2}".

Now,

Now total moment of inertia = sum of inertial moment due to all of the dumbbell

⇒  l1=m(\frac{r}{2})^2+m(\frac{r}{2})^2

⇒  \frac{mr^2}{2}

<u>For Case 2:</u>

Axis moves via one dumbbell because its range from either the axis becomes zero (0) and its impact is zero only at inertia as well as other dumbbell seems to be at a range "r" from either the axis

Now,

Total moment of inertia = moment of inertia of dumbbell at distance "r".

l2=mr^2

And now we can infer from this one,

⇒ mr^2>\frac{mr^2}{2}

So that "I1 > I2" is the right answer.

5 0
4 years ago
The temperature on a warm day is 309.7 K. Calculate the equivalent to this temperature on Fahrenheit temperature scale.
Lynna [10]

Answer:

97.79

Explanation:

4 0
3 years ago
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