The distance traveled by a wave during a single period is

Physics

1 answer:

White raven [17]3 years ago

7 0

I think it's wavelength
Hope I helped.

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A French submarine and a U.S. submarine move toward each other during maneuvers in motionless water in the North Atlantic. The F

Mandarinka [93]

Answer:

$f_{U}= 1019.72hz$

Explanation:

From the equation we are told that:

Velocity of French sub $V_{U}= 43.00km/h$

Velocity of U.S. sub at $V_{F}|=64.00 km//h$

French Wave Frequency $F_{F}=1000Hz$

Velocity of wave $V_{s}=5470 km/h$

Generally the equation for Signal's frequency as detected by the U.S. is mathematically given by

Doppler effect

$f_{U} = \frac{ f_F (vs + v_{U})}{(v_s - v_F) }$

$f_{U}= \frac{ 1000 x ( 5470+64)}{(5470-43)}$

$f_{U}= 1019.72hz$

5 0

3 years ago

E Describe the meaning of a line crossing the x-axis in a<br> velocity-time graph.

gizmo_the_mogwai [7]

Answer:

A line crossing the x-axis in a velocity-time graph means that the moving object has changed its direction.

Explanation:

Velocity-Time graph:

A velocity-time graph is a two dimensional graph with velocity at its y-axis and time at its x-axis. At any point, value of y represents the velocity and value of x represents the time. The slope of the graph gives us the acceleration or deceleration of the moving object.

In a velocity-time graph:

- A straight line represents constant velocity.

- A diagonal line means that the velocity of a body is changing.

*Referring to the figure attached with the answer*

The velocity of the moving object increases at a constant rate for the first 10 minutes. Then the velocity is 60 m/min for the next 5 minutes. After that the velocity is decreasing. Till 30th minute when the velocity is at 0 m/min.

What happens here?

Velocity is a vector quantity. It has some direction. In a velocity-time graph, we are only concerned with two directions of velocity:

- Forward direction

- Backward direction

So, the object stops at 30th minute and starts moving in the reverse direction after that with an increasing velocity. <u>The point where the line cuts the x-axis is basically the point where the object starts moving in the reverse direction.</u>