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Bas_tet [7]
3 years ago
12

A wave has a wavelength of 5 meters and a frequency of 3 hertz. What is the speed of the wave?

Physics
1 answer:
otez555 [7]3 years ago
8 0
A sound wave<span> in a steel rail </span>has<span> a </span>frequency of<span> 620 </span>Hz<span> and a </span>wavelength<span> of 10.5 ... Find the </span>speed<span> of </span>a wave<span> with a </span>wavelength of 5<span> m and a </span>frequency of<span> 68 </span>Hz<span>.</span>
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I need to find 1).a,b,c
Aleksandr [31]
Let's cut through the weeds and the trash
and get down to the real situation:

                  A stone is tossed straight up at  5.89 m/s .
                  Ignore air resistance.


Gravity slows down the speed of any rising object by  9.8 m/s every second.
So the stone (aka Billy-Bob-Joe) continues to rise for

                     (5.89 m/s / 9.8 m/s²)  =  0.6 seconds.

At that timer, he has run out of upward gas.  He is at the top
of his rise, he stops rising, and begins to fall.

His average speed on the way up is  (1/2) (5.89 + 0) = 2.945 m/s .

Moving for 0.6 seconds at an average speed of  2.945 m/s,
he topped out at

                    (2.945 m/s) (0.6 s) =  1.767 meters above the trampoline.

With no other forces other than gravity acting on him, it takes him
the same time to come down from the peak as it took to rise to it.

   (0.6 sec up) + (0.6 sec down)  =  1.2 seconds until he hits rubber again.



 
5 0
3 years ago
Rusting metal is an example of a _________ change. A) phase B) state C) chemical D) physical
sergeinik [125]

Answer:

C. Chemical Change

Explanation:

6 0
3 years ago
Read 2 more answers
Which of the following will not have the same number of valence electrons?
nexus9112 [7]
Carbon is the answer to the problem
4 0
3 years ago
I need help finding the answer
miss Akunina [59]

Speed = (distance) / (time)

Speed = (2.3 m) / (3 sec)

Speed = (2.3/3) (m/s)

<em>Speed = 0.766... m/s</em>

5 0
3 years ago
a cart has 30J or potential energy at the top of a 20m high hill. Assuming no energy is transformed to another form of energy, h
topjm [15]

Answer:

i would say 20J

Explanation:

3 0
3 years ago
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