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3 years ago

Which is true about surface waves? please help

Physics

2 answers:

kenny6666 [7]3 years ago

6 0

I'm Guessing the answer would be D. sorry if I'm incorrect.

Inessa05 [86]3 years ago

3 0

Answer: The correct option is (C).

Explanation:

In longitudinal wave, the vibrations of the particles of the medium are parallel to the direction of the motion of the wave.

In transverse wave, the vibrations of the particles of the medium are perpendicular to the direction of the motion of the wave.

In surface wave, the disturbances which travel in the circular motion. The surface wave is neither longitudinal nor transverse. The particles of the medium are perpendicular and parallel to the direction of the energy transportation.

Therefore, the correct statement about the surface wave is option (C).

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A speeding motorist traveling with velocity Vm is spotted by a police car. The police car is initially at rest, but the instant

Svetlanka [38]

Answer:

Explanation:

Given

Let us suppose police car and motorist travel in straight line and police car catches motorist after s distance

Distance travel by motorist

$s=v_mt$ ----1

Distance traveled by Police car

$s=ut+\frac{at^2}{2}$

$s=0+\frac{a_pt^2}{2}$

$s=\frac{a_pt^2}{2}$ ----2

from 1 & 2 we get

$t=\frac{2v_m}{a_p}$

(a)Velocity of Police car after t sec

$v=u+a_pt$

$v=0+a_p\times \frac{2v_m}{a_p}$

$v=2v_m$

(b)time taken by police car is

$t=\frac{2v_m}{a_p}$

(c)Distance travel by police car $=\frac{2v_m^2}{a_p}$

7 0

3 years ago

Light has a frequency of about 6 x1014 Hz.

abruzzese [7]

Answer:

The visible light frequency is 400 THz to 700 THz, approximately. A THz is a Terahertz, which is a unit of frequency equal to one trillion Hertz.

4 0

2 years ago

Humans protect themselves from natural disasters by all of the following except

jeyben [28]

I'm pretty sure it's sunscreen

4 0

3 years ago

You want to place a mirror at a blind turn on the staircase in your house. Which would be best suited for this purpose?

Eduardwww [97]

You can't see beyond a blind turn, so a mirror would allow you to see around the corner.

6 0

3 years ago

A 0.01 kg spring toy is compressed 0.02 m and released vertically. The toy is measured to reach 0.25 m in the air. Determine the

Scorpion4ik [409]

Answer:

122.5 N/m

Explanation:

According to the law of conservation of energy, if there is no air resistance or frictional forces, the initial elastic potential energy of the spring toy is entirely converted into gravitational potential energy when the toy reaches the highest point.

Therefore, we can write:

$\frac{1}{2}kx^2=mgh$