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3 years ago

These waves are traveling at the same speed. Which wave has the highest frequency?

Physics

2 answers:

Afina-wow [57]3 years ago

7 0

A because they are the tightest

VashaNatasha [74]3 years ago

5 0

Answer : Highest frequency = wave A

Explanation :

The number of vibrations per second is called the frequency of the wave and the distance between two consecutive crests or troughs is called the wavelength of the wave.

The relation between the wavelength and the frequency is inverse i.e.

$\nu=\dfrac{v}{\lambda}$

$\nu\propto\dfrac{1}{\lambda}$

It is clear from the given figure that the wave (a) have least wavelength i.e the distance between two crests or troughs is least.

So, the wave (a) will have highest frequency.

Hence, the correct option is wave (a).

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I need help with this

fredd [130]

We have here what is known as parallel combination of resistors.

Using the relation:

$\frac{1}{ r_{eff} } = \frac{1}{ r_{1} } + \frac{1}{ r_{2} } + \frac{1}{ r_{3} }.. . + \frac{1}{ r_{n} } \\$
And then we can turn take the inverse to get the effective resistance.

Where r is the magnitude of the resistance offered by each resistor.

In this case we have,
(every term has an mho in the end)
$\frac{1}{10000} + \frac{1}{2000} + \frac{1}{1000} \\ \\ = \frac{1}{1000} ( \frac{1}{10} + \frac{1}{2} + \frac{1}{1} ) \\ \\ = \frac{1}{1000} ( \frac{31}{20}) \\ \\ = \frac{31}{20000}$

To ger effective resistance take the inverse:
we get,
$\frac{20000}{31} \: ohm \\ = 645 .16 \: ohm$

The potential difference is of 9V.

So the current flowing using ohm's law,

V = IR

will be, 0.0139 Amperes.

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ella [17]

Water treatment plants have been in existence for almost 220 years

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Write the formula of Lever, Pulleys, wheel and axle and inclined plane.<br>

maxonik [38]

Answer:

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Inclined plane => It can be divided into two components: Fi = Fg * sinθ - parallel to inclined plane. Fn = Fg * cosθ - perpendicular one.

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3 years ago