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Iteru [2.4K]
3 years ago
5

Which of the following is equivalent to 2.5 meters

Physics
2 answers:
blsea [12.9K]3 years ago
5 0
B is the correct answer for sure bro
grigory [225]3 years ago
3 0
The answer is B) 0.0025 kilometers.
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Any force can affect the momentum of an object
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Two lasers are shining on a double slit, with slit separationd.Laser 1 has a wavelength of d/20, whereas laser 2 has a wavelengt
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Answer:

a) laser 1 has the maximum closest to the central maximum

b) y₂ –y₁ = L 1.66 10⁻²

Explanation:

a), B1, B2)  The expression that describes the constructive interference for a double slit is

            d sin θ = m λ

The pattern is observed on a screen

            tan θ = y / L

Since the angles are very small

           tan θ = sin θ / cos θ = sin θ = y/L

 

           d y / L = m λ  

In this case the laser has a wavelength

           λ ₁ = d/20

We substitute

            d y / L = m d / 20

            m = 1

            y₁ = L / 20

For the laser 2 λ ₂= d / 15

             y₂ = L / 15

When examining the two expressions, laser 1 has the maximum closest to the central maximum

b) the difference between the two patterns is

            y₂- y₁ = L (1/15 - 1/20)

           y₂ –y₁ = L 1.66 10⁻²

C) laser 1 second maximum

          y₁ ’= 2 L / 20

          y₁ ’= L 0.1

Laser 2 third minimum

To have a minimum, the equation must be satisfied

           d sin θ = (m + ½) λ  

           d y / L = (m + ½) λ  

           d y / L = (m + ½) d / 15

           y = L (m +1/2) / 15

           m = 3

           y₂’= L (3 + ½) / 15

           y₂’= L 0.2333

The difference is

           y₁ ’- y₂’ = L (0.1 - 0.2333)

          y₁ ’–y₂’ = L (-0.133)

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Imagine rubbing a balloon on your hair or clothes and putting extra electrons on the balloon to give it a negative charge. If yo
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The hydraulic oil in a car lift has a density of 8.30 102 kg/m³. The weight of the input piston is negligible. The radii of the
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Answer:

(a) F_i=68.58\ N

(b) F_i=69.903\ N

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Given:

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  • radius of input piston, r_i=6.3\times 10^{-3}\ m
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(a)

<u><em>Condition:</em></u><em>The bottom surfaces of piston and plunger at the same level.</em>

According to Pascal's law the pressure of a fluid is exerted equally in all directions against the walls of its container.

Mathematically:

\frac{F_i}{A_i} =\frac{F_o}{A_o}

putting respective values

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F_i=68.58\ N

(b)

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Given:

h=1.3\ m

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F_i=69.903\ N

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