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Volgvan
2 years ago
8

As the average kinetic energy of a substance increases, the tempature of the sample

Physics
2 answers:
taurus [48]2 years ago
6 0
I have no clue. Sorry bro
BigorU [14]2 years ago
6 0
B- would also increase because of the work being put into it.
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The sound intensity at a distance 2.00 m from a sound source is 5.00 Find the total sound energy emitted by the source in each s
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Answer:

     P = 251, 3 W

Explanation:

The intensity is defined as the power emitted per unit area

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Since sound is distributed in all directions spherical shape, the area of ​​a sphere is

           A = 4π r²

let's clear the power and replace

         P = I A

         P = I (4π r²)

let's calculate

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6 0
3 years ago
An airplane flies between two points on the ground that are 500 km apart. The destination is directly north of the origination o
Ann [662]

Answer:

   θ = 4.78º

with respect to the vertical or 4.78 to the east - north

Explanation:

This is a velocity compound exercise since it is a vector quantity.

The plane takes a direction, the air blows to the west and the result must be to the north, let's use the Pythagorean theorem to find the speed

                  v_fly² = v_nort² + v_air²

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Let's use trigonometry to find the direction of the plane

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let's calculate

        θ = sin⁻¹ (10/120)

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with respect to the vertical or 4.78 to the north-east

5 0
3 years ago
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