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sashaice [31]
3 years ago
7

1: In a longitudinal wave, the particle displacement is __________ the direction of wave movement

Physics
1 answer:
jenyasd209 [6]3 years ago
5 0
The answer is parallel

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Assume a change at the source of sound reduces the wavelength of a sound wave in air by a factor of 3.
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Explanation:

The speed of a wave is given by :

v=f\lambda ......(1)

(i) Here, the wavelength of a sound wave in air reduces by a factor of 3. Equation (1) becomes :

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The initial volume reading in a graduated cylinder is 30 mL. The mass of an irregular shape of an unknown metal piece is 55.3 g.
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7.9\frac{gr}{cm^3}

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When we put the metal piece in the liquid (which is in the graduated cylinder), how much it goes up is equal to the volume of the piece we inserted.

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Density is \frac{mass}{volume}.

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Which leaves us with a final density of 7.9\frac{gr}{cm^3}

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Plz help me to find my science matching... <br>​
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move at constant velocity.

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In the case of the probe, friction in deep space is negligible, therefore when the engine is shut down, there are no more forces acting on the probe: the net force therefore will be zero, so the probe will move at constant velocity.

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