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Katarina [22]
3 years ago
10

2. Jenny picks up a guitar and strums. If the sound from the string emanates out at 440 Hz,

Physics
1 answer:
erik [133]3 years ago
7 0

Answer:

6.8×10^6 m

Explanation:

f = velocity of light/ wavelength

440= 3×10^8 / wavelength

so

wavelength = 3×10^7/ 44

= 6.8×10^6 m

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Answer:

opposite the sun. between the Earth and the sun. rising perpendicular to the sun.

Explanation:

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Two water balloons of mass 0.75 kg collide and bounce off of each other without breaking. Before the collision, one water balloo
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By the law of momentum conservation:-
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How much heat is absorbed by a 71g iron skillet when its temperature rises from 11oC to 29oC?
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The right formula to use for this calculation is the heat capacity formula, 
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3 years ago
Suppose a nonconducting sphere, radius r2, has a spherical cavity of radius r1 centered at the sphere's center. Assuming the cha
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Answer:

Explanation:

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b ) From r = r₁ to r = r₂

At distance r , charge contained in the sphere of radius r

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c )

Outside of r = r₂

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If a ball with an original velocity of zero is dropped from a tall structure and it takes 7 seconds to hit the ground, what velo
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The negative sign denotes the direction of the ball.
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