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laila [671]
3 years ago
5

Two scientists are discussing their beliefs about something they cannot observe

Physics
2 answers:
mihalych1998 [28]3 years ago
8 0
They're
talking about  what some one told them 
svetoff [14.1K]3 years ago
5 0
Could it be hypothesis?
You might be interested in
The width of the central maxima, formed from light of wavelength 575 nm behind a single slit that has a width of 115 μm, is 1.15
Lady bird [3.3K]

Answer:

 L  = 1.15 m

Explanation:

The diffraction phenomenon is described by the equation

        a sin θ = m λ

Where a is the width of the slit, λ  the wavelength and m is an integer, the order of diffraction is left.

The diffraction measurements are made on a screen that is far from the slit, and the angles in the experiment are very small, let's use trigonometry

          tan θ = y / L

          tan θ = sint θ / cos θ≈ sin θ

We substitute in the first equation

           a (y / L) = m λ

The first maximum occurs for m = 1

The distance is measured from the center point of maximum, which coincides with the center of the slit, in this case the distance is the total width of the central maximum, so the distance (y) measured from the center is

         y = 1.15 / 2 = 0.575 cm

         y = 0.575 10⁻² m

Let's clear the distance to the screen (L)

       L = a y / λ  

Let's calculate

     L = 115 10⁻⁶  0.575 10⁻² / 575 10⁻⁹

     L  = 1.15 m

3 0
3 years ago
What conversion factor is used to convert 20 cm to m
Anastaziya [24]
The conversion factor you use is 100 cm = 1 m.
You can divide 20 by 100 to get the answer.
20 cm/100 cm =.2 m
Hope this helped!
7 0
3 years ago
What causes the bright lines seen in the emission spectrum?
Snezhnost [94]
Base in your questions that ask what cause the bright lines seen in the emission spectrum and i think the best answer to that is the H2 gas is used when protons was heated so the electron absorb all the photons and get exited and resulted by given of a light.
7 0
3 years ago
Match these names with the correct statements. 1. said sun revolved around earth Clyde Tombaugh 2. said earth revolved around su
Murljashka [212]

Answer:

1. Ptolemy.

2. Nicolaus Copernicus.

3. Tycho Brahe

4. Galileo Galilei

5. Isaac Newton

6. William Herschel

7. Johann Galle

8. Clyde Tombaugh

9. Albert Einstein.

10. Edwin Hubble

11. Karl Jansky.

12. Grote Weber.

Explanation:

1. Ptolemy: said sun revolved around earth.

2. Nicolaus Copernicus: aid earth revolved around sun.

3. Tycho Brahe: analyzed motions of planets.

4. Galileo Galilei: first used refracting telescope for astronomy.

5. Isaac Newton: invented reflecting telescope.

6. William Herschel: discovered the planet Uranus.

7. Johann Galle: discovered the planet Neptune.

8. Clyde Tombaugh: discovered the dwarf planet Pluto.

9. Albert Einstein: developed special and general theories of relativity.

10. Edwin Hubble: demonstrated that universe is expanding.

11. Karl Jansky: discovered radio waves from the center of the Milky Way.

12. Grote Weber: an amateur astronomer who built the first radio telescope.

8 0
3 years ago
Two objects, one having three times the mass of the other, are dropped from the same height in a vacuum. At the end of their fal
gogolik [260]

Answer:

Two objects will have the equal velocities but the forces on both of them will not be equal. The equal velocities of these objects are due to their equal acceleration.

Explanation:

From the newton's equation

v^{2} -u^{2} = 2as

so here we can say that velocity does not depends on the mass.

The acceleration of both objects will be same but not the forces because

F = Ma

As the force is depending on the mass so it will not be the same for both objects.

5 0
3 years ago
Read 2 more answers
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