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igomit [66]
2 years ago
11

Define rectilinear propagation of light.??​

Physics
2 answers:
Tju [1.3M]2 years ago
5 0

Answer:

it relates to the light propensity to travel over one straight line without having any interference in its trajectory

Explanation:

olya-2409 [2.1K]2 years ago
4 0

Answer:

the light always moves in a straight line I guess that's it

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A plane flying horizontally at a speed of 50 m/s and at an elevation of 160 m drops a package, and 2.0 s later it drops a second
Anarel [89]

Answer:

386 m

Explanation:

Let's call the horizontal distance between the point of launch and the point of landing of the first package x\text{ m}.

2 seconds after landing at x, the plane has travelled a horizontal distance of 2\text{ s}\times 50 \text{ m/s} = 100\text{ m}.

At this new point, the second package is launched. Because it is launched under the same conditions as the first, its horizontal distance from its point of launch is also x\text { m}.

To determine x, we determine the time of fall of the package. Being a vertical motion, the drop has an initial velocity, u, of 0 m/s with acceleration, a = g = 9.8 \text{ m/s}{}^2, and a distance, s, of 160 m. We use the equation of motion:

s = ut+\frac{1}{2}at^2

160 = 0\times t + \frac{1}{2}9.8\times t^2

t = \sqrt{\dfrac{160}{4.9}}\text { s}=\dfrac{40}{7}\text { s}

In this time, the package, with a horizontal velocity of 50 m/s, travels the horizontal distance, x, of

x = 50 \text{ m/s}\times \dfrac{40}{7}\text { s} = \dfrac{2000}{7}\text { m} = 286 \text{ m}

The distance apart between both packages is x+100\text{ m} = 286+100\text{ m} = 386\text{ m}

7 0
2 years ago
The energy diagram shows the changes in energy during a chemical reaction.
valentinak56 [21]

Answer:

no en ingleses ok porque es muy tedioso además de que no se porque estas traduciendo esto no va a a ver respuesta así que no se que harás

Explanation:

ngkgljxkvxkgzgkxkvzkgzgkxkgxglxltd

3 0
2 years ago
8. A point of Charge +3.0 X 10^-7 Coulomb is placed 2.0 X 10^-2 from a second
Oksi-84 [34.3K]
Use the formula F = (9x10^9 Q * q) / r^2
Message me if you need help.
4 0
3 years ago
A man is 40 kg . calculate his weight.(g=10m/s^2)
Dafna1 [17]

{ \large{ \bf{Weight = mg}}}

{ \large{ \bf{Mass = 40 \:  kg \:  \:  \:  \: (given)}}}

{ \large{ \bf{Weight = 40 \times 10}}}

{ \large{ \therefore{ \bf{ \red{ Weight = 400N}}}}}

5 0
2 years ago
A vacuum tube diode consists of concentric cylindrical electrodes, the negative cathode and the positive anode. Because of the a
DENIUS [597]

Answer:

   C = 4,174 10³ V / m^{3/4} ,  E = 7.19 10² / ∛x,    E = 1.5  10³ N/C

Explanation:

For this exercise we can calculate the value of the constant and the electric field produced,

Let's start by calculating the value of the constant C

           V = C x^{4/3}

           C = V / x^{4/3}

            C = 220 / (11 10⁻²)^{4/3}

            C = 4,174 10³ V / m^{3/4}

To calculate the electric field we use the expression

            V = E dx

             E = dx / V

             E = ∫ dx / C x^{4/3}

            E = 1 / C  x^{-1/3} / (- 1/3)

            E = 1 / C (-3 / x^{1/3})

We evaluate from the lower limit x = 0 E = E₀ = 0 to the upper limit x = x, E = E

            E = 3 / C     (0- (-1 / x^{1/3}))

            E = 3 / 4,174 10³   (1 / x^{1/3})

           E = 7.19 10² / ∛x

for x = 0.110 cm

          E = 7.19 10² /∛0.11

          E = 1.5  10³ N/C

6 0
3 years ago
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