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nataly862011 [7]
3 years ago
14

I need help real quick. Please help me!!

Physics
1 answer:
dimaraw [331]3 years ago
4 0
<h3><u>Answer;</u></h3>

D) Standing wave

<h3><u>Explanation;</u></h3>
  • Standing wave also called stationary wave  is a wave which oscillates in time but whose peak amplitude profile does not move in space.
  • A standing wave pattern is a vibrational pattern created within a medium when the vibrational frequency of the source causes reflected waves from one end of the medium to interfere with incident waves from the source.
  • Examples of standing waves include the vibration of a violin string and electron orbitals in an atom.
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Who’s of the following is classified as a salt: ammonia or sodium chloride?
Temka [501]

Sodium Chloride could be classified as a salt.

8 0
3 years ago
A certain kind of glass has an index of refraction of 1.640 for blue light of wavelength 440 nm and an index of 1.595 for red li
seraphim [82]

Answer: 18.27°

Explanation:

Given

Index of refraction of blue light, n(b) = 1.64

Wavelength of blue light, λ(b) = 440 nm

Index of refraction of red light, n(r) = 1.595

Wavelength of red light, λ(r) = 670 nm

Angle of incident, θ = 30°

Angle of refraction of red light is

θ(r) = sin^-1 [(n(a)* sin θ) / n(r)], where n(a) = index of refraction of air = 1

So that,

θ(r) = sin^-1 [(1 * sin 30) / 1.595]

θ(r) = sin^-1 (0.5 / 1.595)

θ(r) = sin^-1 0.3135

θ(r) = 18.27°

4 0
3 years ago
What happens to the atoms that make up hydrogen fuel as it burns?
ale4655 [162]

Answer:

Get turned Into Water.

Explanation:

Combustion of Hydrogen involves combining oxygen and hydrogen essentially so when oxygen and hydrogen combine water is produced, following chemical equation describes this process.

H_{2} +O_{2}=2(H_{2}O).

Resulting product is two molecules of water.

4 0
3 years ago
In the mass spectrum of pentane, the presence of a peak with m/z = 15 is most likely to the detection of:_________-
aliya0001 [1]

In the mass spectrum of pentane, the presence of a peak with m/z = 15 is most likely due to the detection of A) methyl radical cation that has been lost from the spectrum.

<h3>Mass Spectrum</h3>

The m/z ratios of any ions contained in a sample displayed against their intensities that forms a mass spectrum.

The height of the peaks in any kind of mass spectrum denotes the relative abundance of the various components in the sample, and each peak in a mass spectrum displays a component that a distinct m/z is in the sample.

<h3>How do mass spectra function?</h3>

Only when a molecule has been transformed into a gas-phase ion can a mass spectrometer calculate the mass of the molecule.

In order to do this, it gives molecules an electrical charge and transforms the flow of electrically charged ions that results into a proportional electrical current that a data system can subsequently read.

<h3>Give an example of the mass spectral range.</h3>

Whenever any molecules are ionized in an ionization box, many different kinds of ions have been created.

To know more about Mass spectrum visit:

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Complete Question

In the mass spectrum of pentane, the presence of a peak with m/z = 15 is most likely to the detection of: _________-

A) Methyl Radical

B) Ethyl Radical

C) Propyl Radical

D) Butyl Radical

3 0
1 year ago
A ball rolling down a hill was displaced 19.6 m while uniformly accelerating from rest. If the final velocity was 5.00m/s what w
poizon [28]

The rate of acceleration is 0.64 m/s^2

Explanation:

Since the ball is moving at constant acceleration, we can solve the problem by using the following suvat equation:

v^2-u^2=2as

where

v is the final velocity

u is the initial velocity

a is the acceleration

s is the displacement

For the ball in this problem,

u = 0

v = 5.00 m/s

s = 19.6 m

Solving for a, we find the acceleration:

a=\frac{v^2-u^2}{2s}=\frac{(5.00)^2-0}{2(19.6)}=0.64 m/s^2

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brainly.com/question/2562700

#LearnwithBrainly

7 0
3 years ago
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