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3 years ago

A periodic wave travels from one medium to another. Which pair of variables are likely to change in the process?

Physics

1 answer:

Travka [436]3 years ago

4 0

A velocity and wavelength

Explanation:

When a periodic wave travels from one medium to another, its velocity and wavelength changes in the process.

A periodic wave is a wave with repeating pattern.

When a wave crosses different medium with different densities, their velocity and wavelength changes.
This implies that wave causes disturbances in different ways.
This change in wavelength and velocity as a wave crosses two medium is known as refraction.
When a wave moves from a less dense medium to a denser one, the velocity reduces and the wavelength increases.

learn more:

Refraction brainly.com/question/12370040

#learnwithBrainly

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Vector A⃗ points in the positive y direction and has a magnitude of 12 m. Vector B⃗ has a magnitude of 33 m and points in the ne

gavmur [86]

vector A has magnitude 12 m and direction +y

so we can say

$\vec A = 12 \hat j$

vector B has magnitude 33 m and direction - x

$\vec B = -33 \hat i$

Now the resultant of vector A and B is given as

$\vec A + \vec B = 12 \hat j - 33 \hat i$

now for direction of the two vectors resultant will be given as

$\theta = tan^{-1}\frac{12}{-33}$

$\theta = 160 degree$

so it is inclined at 160 degree counterclockwise from + x axis

magnitude of A and B will be

$R = \sqrt{A^2 + B^2}$

$R = \sqrt{12^2 + 33^2} = 35.11 m$

so magnitude will be 35.11 m

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3 years ago

A student standing on a cliff that is a vertical height d = 8.0 m above the level ground throws a stone with velocity v0 = 22 m/

Alina [70]

Answer:

V = 25.3 , θf = 36.7° below the horizontal

Explanation:

Given Vo = 22m/s , θ = 23°

Vx = VoCosθ

Vy = VoSinθ – gt

t = total time of flight

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3 years ago

A cat is on a 1.5 m high table and jumps at a 37 angle with a speed of 10 m/s. how far horizontally from the edge of the table d

Kaylis [27]

The answer is 11.51 meters (:

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4 years ago

What is the speed of a wave that has a frequency of 45 Hz and a wavelength of 0.1 meters?

Yuri [45]

<span>λν=c
(wavelength x frequency = speed)

speed = 45 x 0.1
= 4.5 m/s</span>

6 0

4 years ago

Read 2 more answers

If two conductors are not touching but are close to each other, a large enough voltage will cause an _________________ to occur

Aleks [24]

Answer:

Electrical breakdown.

Explanation:

When two conductors are relatively close enough, and have a very large voltage between them, it can lead to a Dielectric breakdown. A dielectric breakdown occurs when an insulator is subjected to a high enough voltage, suddenly becomes an electrical conductor and electric current flows through it. The air between the conductors is the insulator that breaks down, leading to an electrical discharge arc to flow between the two conductors. This electrical breakdown can cause catastrophic failure of electrical equipment, and fire hazards.

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3 years ago