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kiruha [24]
3 years ago
13

In an equation f = l^2-d^2/4l the intercept is​

Physics
1 answer:
DanielleElmas [232]3 years ago
5 0

Answer:

the intercept is the orgin (0,0)

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Sound with frequency 1220Hz leaves a room through a doorway with a width of 1.13m . At what minimum angle relative to the center
mel-nik [20]

Answer:

θ = 14.45º  = 0.252 rad

Explanation:

The expression that describes the phenomenon of diffraction is

    a sin θ = m λ

Where a is the width of the exit opening in this case the width of the door, Lam is the wavelength, m the diffraction order for destructive interference,

Let's use the relationship between the speed of the wave is the producer of its frequency by the wavelength

    v = λ f

   λ = v / f

    λ = 344/1220

   λ = 0.282 m

   sin θ = m  λ / a

For the first destructive interference m = 1

   sin θ = 1 0.282 /1.13

  sin θ = 0.24956

  θ = sin-1 (0.24956)

  θ = 14.45º

We pass radians

   θ = 14.45 (pi rad / 180º) = 0.252 rad

4 0
3 years ago
How do I calculate the frequency of an observer
Alja [10]
Search Results
Featured snippet from the web
If the observer is moving away from the source ((Figure)), the observed frequency can be found: λs=vTo−voTovTs=(v−vo)Tov(1fs)=(v−vo)(1fo)fo=fs(v−vov).
8 0
3 years ago
What two forms of energy does the sun supply?
Nadya [2.5K]
Nuclear fusion and heat (thermal) energy
8 0
3 years ago
A 0.25-kg ball attached to a string is rotating in a horizontal circle of radius 0.5 m twice every second, what is the tension i
Svetradugi [14.3K]

Answer:

T = 19.75 N

Explanation:

given,

mass of ball = 0.25 Kg

radius = 0.5 m

frequency = 2 s⁻¹

tension in the string = ?

angular velocity

ω = 2 π f

ω = 2 π x 2

ω = 12.57 rad/s

tension on the string is equal to the centripetal force

T = m ω² r

T = 0.25 x 12.57² x 0.5

T = 19.75 N

Tension in the string is equal to T = 19.75 N

3 0
3 years ago
HELP FAST!!!!!!!
Alex17521 [72]

<u>Answer</u>

A. Metals A and metals B



<u>Explanation</u>

Heat transfer takes place whenever there is temperature difference. When two bodies of different temperatures are brought together, heat energy will move from one body to the other until equilibrium temperature is reached.

In our case, heat transfer will take place in all four metals.

Metal A will transfer heat to the water since it's temperature is higher than that of water.

Metal B will also transfer heat to the water since it's temperature is higher than that of water.

Metal C will get heat from the water since it's colder than the water.

Metal D will also get heat from the water since it is colder than water.

7 0
3 years ago
Read 2 more answers
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