answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
bogdanovich [222]
2 years ago
6

Two loudspeakers, A and B, are driven by the same amplifier and emit sinusoidal waves in phase. The frequency of the waves emitt

ed by each speaker is 172 Hz. You are 8.00 m from the speaker.
Take the speed of sound in air to be 344 m/s. What is the closest you can be to speaker B and be at a point of destructive interference?
Physics
1 answer:
geniusboy [140]2 years ago
5 0

Answer:

The distance of the speaker B would be 1 meters.

Explanation:

Given that,

Frequency of the waves emitted, f = 172 Hz

You are 8.00 m from the speaker.

The speed of sound in air to be 344 m/s.

The wavelength of the wave is given in terms of frequency and the speed of sound. It is given by :

v=f\lambda\\\\\lambda=\dfrac{v}{f}\\\\\lambda=\dfrac{344\ m/s}{172\ Hz}\\\\\lambda=2\ m

Since, the distance from the Speaker A is 8 m which is the integral multiple of the wavelength. Let the closest distance of the speaker B would be given by :

d=\dfrac{\lambda}{2}\\\\d=\dfrac{2}{2}\\\\d=1\ m

So, the distance of the speaker B would be 1 meters. Hence, this is the required solution.

You might be interested in
Ancient Greek philosophers spent lots of time thinking about science and imaging explanations for the natural world. What part o
Illusion [34]

Answer:

Testing

Explanation:

Ancient Greek philosophers lived with the ideology to simply contemplate life. This means that their whole life revolved around thinking and questioning everything. This would include creative thinking, because they would sometimes come up with theories which require creativeness. They would often debate with their friends as to why their theory should be accepted or what their opinions were on the matter. More often than not, they argued a lot, and many philosophers went against some powerful people in the community and some were even sentenced to death.

The main process they didn't/couldn't do was the testing. They could never test certain theories because they did not have the means to.

4 0
1 year ago
A 1000.–kilogram car traveling 20.0 meters per second east experiences an impulse of 2000. newton • seconds west. What is the fi
emmainna [20.7K]
Impulse is equal to change in momentum. So if impulse is 2000 then to solve for new velocity we just set it equal to equation for momentum.

First find original momentum by p=mv
p=1000*20=20000

So then taking that value minus the impulse since it was in opposite direction of original momentum it will slow it down some. To find new velocity we just take

20000-2000=18000=mv

v=18000/1000 =18m/s

Hope this helps!! Any questions please ask!!
Thank you!
5 0
2 years ago
You are stranded in a blizzard. You need water to drink to drink,and you're trying to stay warm.should the melt the snow and dri
Crazy boy [7]
It would be a really bad idea to eat the snow because you obviously are trying to stay warm right? Well, the best thing to do is melt the snow. However, the process of melting the snow would have a few complications as well. But yes, the latter idea (drinking the snow) is a better idea (not the best).
7 0
2 years ago
Scientific knowledge builds upon previous knowledge."
notka56 [123]

Answer:

B

Explanation:

Magic

4 0
2 years ago
While the cart is moving along an aisle, it comes in contact with a smear of margarine that had recently been dropped on the flo
liberstina [14]

Answer:

No, the velocity of the grocery cart will not remain constant, but instead will increase continuously

Explanation:

No the grocery cart will not move at constant velocity over the spilled maragine because as the frictional force is changed to - 20 N, the net force will not be equal to zero

Net force on the cart when frictional force is changed to - 20 N is 40 - 20 N = 20 N

As the force is positive, it means that the force is acting in the direction of motion of the cart and will increase the velocity of the cart as the force is acting in the direction of motion

∴ The velocity of the cart will not remain constant instead it will increase

3 0
2 years ago
Other questions:
  • Suppose you push a hockey puck of mass m across frictionless ice for a time 1.0 s, starting from rest, giving the puck speed v a
    13·2 answers
  • What's the momentum of a 3.5-kg boulder rolling down hill at 5 m/s
    7·1 answer
  • A system absorbs 52 joules of heat and does work using 25 joules of energy. What is the change in the internal energy of the sys
    6·2 answers
  • Why to astronauts appear weightless while they are filmed performing activities inside the orbiting space shuttle? they are high
    6·1 answer
  • Which picture represents 2NO2?
    7·2 answers
  • Trace fossils are recognized as evidence of which pre-existing life? plants plants and animals neither plants nor animals animal
    11·2 answers
  • You are in a spacecraft moving at a constant velocity. The front thruster rocket fires incorrectly, causing the craft to slow do
    5·1 answer
  • Calculate the true mass (in vacuum) of a piece of aluminum whose apparent mass is 4.5000 kgkg when weighed in air. The density o
    5·1 answer
  • Um navio cargueiro proveniente do Oceano Atlântico passa a navegar nas águas menos densas do rio Amazonas. Em comparação com a s
    14·1 answer
  • Arrange an 8-, 12-, and 16-Ω resistor in a combination that has a total resistance of 8.89 Ω pls with de work
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!