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ZanzabumX [31]
4 years ago
9

Two speakers, one directly behind the other, are each generating a 280-Hz sound wave. What is the smallest separation distance b

etween the speakers that will produce destructive interference at a listener standing in front of them? The speed of sound is 338 m/s.
Physics
1 answer:
Annette [7]4 years ago
4 0

Answer:

1.21m

Explanation:

If two speakers are generating a frequency of 280Hz, the smallest separation distance between the speakers that will produce destructive interference at a listener standing in front of them is also known as the wavelength of the sound wave generated.

Using the expression;

Velocity v = frequency f × wavelength ¶

Given frequency = 280Hz, speed of sound v = 338m/s

Substituting this data's in the expression given to get the wavelength will give;

¶ = v/f

¶ = 338/280

¶ = 1.21m

The smallest separation between the speakers that will produce the interference is 1.21m

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3 years ago
a charged partocle produces an electric field with a magnitude of 2.0 N/C at a point that is 50cm away from the particle
zheka24 [161]

The charge on the particle is 5.6 × 10⁻¹¹ C.

<h3>Calculation:</h3>

The magnitude of an electric field produced by a charge is given by:

                                                 E = q/ 4πε₀r²

where,

E = electric field

q = charge

r = distance

1/4πε₀ = 8.99 × 10⁹ Nm²/C²

Given,

E = 2.0 N/C

r = 50 cm = 0.5 m

To find,

q =?

Put the values in the above equation:

E = q/ 4πε₀r²

q = E (4πε₀r²)

q = 2.0 × (0.50²)/ 8.99 × 10⁹

q = 5.6 × 10⁻¹¹ C

Therefore, the particle has a charge of 5.6 × 10⁻¹¹ C.

<h3>What is an electric field?</h3>

The physical field that surrounds each electric charge and acts to either attract or repel all other charges in the field is known as an electric field. Electric charges or magnetic fields with different amplitudes are the sources of electric fields.

I understand the question you are looking for is this:

A charged particle produces an electric field with a magnitude of 2.0 N/C at a point that is 50 cm away from the particle. What is the magnitude of the particle's charge?

Learn more about electric field here:

brainly.com/question/14857134

#SPJ4

4 0
2 years ago
Alberta is going to have dinner at her grandmother's house, but she is running a bit behind schedule. As she gets onto the highw
viktelen [127]

Complete Question

Alberta is going to have dinner at her grandmother's house, but she is running a bit behind schedule. As she gets onto the highway, she knows that she must exit the highway within 55 min if she is not going to arrive late. Her exit is 43 mi away. How much time would it take at the posted 60 mph speed?

Answer:

The time it would take at the given speed is  x = 43.00 \ minutes

Explanation:

From the question we are told that

      The time taken to exist the highway is  t = 55 min

      The distance to the exist is  d =  43\  mi

       Alberta speed is v =  60 mph

The time it would take travelling at the given speed is mathematically represented as

        t_z = \frac{d}{v}

  substituting values

        t_z = \frac{43}{60}

        t_z = 0.71667\ hrs

Converting to minutes

         1  hour =  60 minutes

So      0.71667 hours = x minutes

   Therefore

               x = 0.71667 * 60

                x = 43.00 \ minutes

5 0
3 years ago
• How does AC work?
Juli2301 [7.4K]
AC reverses the current in periods, and the current flows in 2 directions. 
DC only flows in one direction and is constant. 

AC is typically used to transfer power over long distances from a generator to your home, stepping it up after it's generated to send it over the distance, then stepping it back down so that it is usable in your home.

DC is used typically inside of devices, as it sends a certain amount of electricity through the wires.

Nicolas Tesla, was ripped off by Edison to replace his DC stations with AC instead. ^^
4 0
3 years ago
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