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3 years ago

30 POINTS!!! PLZZZZZZ HELP

2 answers:

7 0

Psychological disorder is a kind of disease, related to brain functioning, they are very different, but can't be distinguished at high level so they are not extremely different

In short, Your Answer would be: "False"

Hope this helps!

Naddik [55]3 years ago

4 0

This is False . In fact, it's a kind of disease so they are different however they can't be distinguish and their behavior are just like the behavior of "normal people".

Hope this helps !

Photon

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The mass energy equivalence shows that conservation of mass is a

Zepler [3.9K]

Answer:

Explanation:

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3 years ago

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A harmonic wave on a string is described by

xxMikexx [17]

$\huge{\bold{\orange{\underline{ Solution }}}}$

<h3>Given :-</h3>

A harmonic wave on a string is described by

$\sf{ Y( x, t) = 0.1 sin(300t + 0.01x + π/3)}$

x is in cm and t is in seconds

<h3>Answer 1 :-</h3>

Equation for travelling wave :-

$\sf{ Y( x, t) = Asin(ωt + kx + Φ)...eq(1)}$

Equation for stationary wave :-

$\sf{ Y( x, t) = Acos(ωt - kx )...eq(2)}$

Given equation for wave :-

$\sf{ Y( x, t) = 0.1 \:sin(300t + 0.01x + π/3)...eq(3)}$

On comparing eq(1) , (2) and (3)

We can conclude that, Given wave represent travelling wave.

<h3>Answer 2 :-</h3>

From solution 1 , We can say that,

$\sf{ Y( x, t) = 0.1 \: sin(300t + 0.01x + π/3).}$

It is travelling from right to left direction

Hence, The direction of its propagation is right to left that is towards +x direction.

<h3>Answer 3 :-</h3>

Here, We have to find the wave period

We know that,

Wave period = wavelength / velocity

Wave equation :-

$\sf{ Y( x, t) = 0.1 \:sin(300t + 0.01x + π/3).}$

ω = 300rad/s
k = 0.01

We know that, 

$\sf{v =}{\sf{\dfrac{ ω}{2π}}}{\sf{\: and\:}}{\sf{ λ =}}{\sf{\dfrac{ 2π}{k}}}$

Subsitute the required values,

$\sf{ wave\: period =}{\sf{\dfrac{ 2π/k}{ω/2π }}}$

$\sf{ wave \:period = }{\sf{\dfrac{k}{ω}}}$

$\sf{ wave\: period =}{\sf{\dfrac{ 0.01}{300}}}$

$\sf{ wave\: period = 0.000033\: s}$

<h3>Answer 4 :-</h3>

The wavelength of given wave

$\bold{ λ = }{\bold{\dfrac{2π}{k}}}$

Subsitute the required values, 

$\sf{ λ = }{\sf{\dfrac{2 × 3.14 }{0.01}}}$

$\sf{ λ = }{\sf{\dfrac{6.28}{0.01}}}$

$\sf{ λ = 628 \: cm }$

<h3>Answer 5 :-</h3>

We have wave equation

$\sf{ Y( x, t) = 0.1 sin(300t + 0.01x + π/3).}$

Travelling wave equation :-

$\sf{ Y( x, t) = A\:sin(ωt + kx + Φ)...eq(1)}$

Therefore, 

Amplitude of the wave particle

$\sf{ A = 0.1 \: cm}$

Hence, The amplitude of the particle is 0.1 cm

8 0

2 years ago

Please help me I will give brainliest to you

Ainat [17]

Answer:

a) Plant cell

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3 years ago

American eels (Anguilla rostrata) are freshwater fish with long, slender bodies that we can treat as a uniform cylinder 1.0 m lo

madam [21]

Answer:

option D

Explanation:

given,

uniform length of cylinder = 1 m

diameter of the cylinder = 10 cm = 0.1 m

Eels have been recorded to spin = 14 rev/s

camera records at = 120 frames per second

time = $\dfrac{1}{120}\ s/frame$

angle at which eel rotate = ?

ω = 14 rev/s

ω = 14 x 2 π rad/s

ω = 28 π rad/s

angle at which eel rotate

θ = ω t

θ = $28\pi\times \dfrac{1}{120}$

θ = 0.733 rad

θ = $0.733 \times \dfrac{180^0}{2\pi}$

θ = $42^0$

Hence, the correct answer is option D

4 0

3 years ago

The temperature of water in a beaker is 45°C. What does this measurement represent?

belka [17]

According to the Kinetic Molecular Theory of Matter, the average kinetic energy of the atoms in a system is directly proportional to its temperature. Thus, the answer to this question is: the average kinetic energy of water particles.

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4 years ago

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