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steposvetlana [31]
2 years ago
8

Are the waves in this application transverse, longitudinal, or both? If either transverse or longitudinal waves are missing from

the application explain why?On what parameters of the media (pressure, temperature, mass, density,... ) does the wave speed depend?
Physics
1 answer:
lianna [129]2 years ago
4 0

Answer:

Explanation:

consider the radio wave which is electro magnetic wave used for radio communication.

  1. the wave propagates for air or vacuum.
  2. the wave presented by air is a transverse wave
  3. the radio wave speed is constant that is, equals to the speed of light as it is now electromagnetic waves.
  4. now the general relationship between frequency, speed and wavelength is given by

                         c = v/lander

               lander = c/v          

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If the wavelength is changed to λ/2, does the central spot remain bright, does the central spot become dark, or do the fringes d
omeli [17]

Answer:The central spot becomes Dark

Explanation: it become dark because as the wavelength reduces,the velocity in the detector decreases, this time by 90degrees

4 0
3 years ago
The masses are m1 = m, with initial velocity 2v0, and m2 = 7.4m, with initial velocity v0. Due to the collision, they stick toge
lesya [120]

Answer:

Loss, \Delta E=-10.63\ J

Explanation:

Given that,

Mass of particle 1, m_1=m =0.66\ kg

Mass of particle 2, m_2=7.4m =4.884\ kg

Speed of particle 1, v_1=2v_o=2\times 6=12\ m/s

Speed of particle 2, v_2=v_o=6\ m/s

To find,

The magnitude of the loss in kinetic energy after the collision.

Solve,

Two particles stick together in case of inelastic collision. Due to this, some of the kinetic energy gets lost.

Applying the conservation of momentum to find the speed of two particles after the collision.

m_1v_1+m_2v_2=(m_1+m_2)V

V=\dfrac{m_1v_1+m_2v_2}{(m_1+m_2)}

V=\dfrac{0.66\times 12+4.884\times 6}{(0.66+4.884)}

V = 6.71 m/s

Initial kinetic energy before the collision,

K_i=\dfrac{1}{2}(m_1v_1^2+m_2v_2^2)

K_i=\dfrac{1}{2}(0.66\times 12^2+4.884\times 6^2)

K_i=135.43\ J

Final kinetic energy after the collision,

K_f=\dfrac{1}{2}(m_1+m_2)V^2

K_f=\dfrac{1}{2}(0.66+4.884)\times 6.71^2

K_f=124.80\ J

Lost in kinetic energy,

\Delta K=K_f-K_i

\Delta K=124.80-135.43

\Delta E=-10.63\ J

Therefore, the magnitude of the loss in kinetic energy after the collision is 10.63 Joules.

7 0
3 years ago
A 50-cm3 block of wood is floating on water, and a 50-cm3 chunk of iron is totally submerged in the water. Which one has the gre
ludmilkaskok [199]

Answer:

Iron

Explanation:

The buoyant force equals to the weight of water being displaced by the object.

Since, the volume of both iron and wood is equal and the wood is not completely submerged, but the iron block is completely submerged i.e more volume of the water is being displaced by the iron block.

Hence, the buoyant force is more on the iron.

4 0
3 years ago
A running back with a mass of 70 kg travels down the field with a velocity of 5.0 ms . Calculate the kinetic energy of the footb
e-lub [12.9K]
Kinetic energy=0.5*mass*(velocity²)=0.5*70*5*5=875 J
7 0
2 years ago
Which sentences describe point source pollution? In this type of pollution, the source of the pollution is single and easily ide
fenix001 [56]

Answer:

In this type of pollution, the source and of the pollution, the source of the is single and identifiable.

Explanation:

These sources are regulated by federal and state agencies and include conduit pipes, industrial discharge and sewerage treatment plants that release treated or untreated waste matter in to  water bodies. They can therefore possibly be  directly controlled by human decision.

7 0
3 years ago
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