1answer.
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
katen-ka-za [31]
4 years ago
12

A 524-Hz longitudinal wave in air has a speed of 345 m/s. (a) What is the wavelength? (b) How much time is required for the phas

e to change by 90° at a given point in space? (c) At a particular instant, what is the phase difference (in degrees) between two points 4.4 cm apart?
Physics
1 answer:
zhuklara [117]4 years ago
5 0

Answer: a) 152 cm

b) 0.725 ms

c) 10°

Explanation:

Given

Frequency of the wave, f = 524 Hz

Speed of the wave, v = 345 m/s

Wavelength of the wave, λ = ?

The relation for wavelength is given by

λ = f/v, on substituting

λ = 524 / 345

λ = 1.52 m or 152 cm

T = 1/v

T = 0.0029 s

T = 2.9 ms.

Note that the phase change is 90°, thus the time required to change the phase by 90° is

t = 2.9 * (90 / 360)

t = 2.9 * 0.25

t = 0.725 ms

The phase difference at a particular instance 4.4 cm apart is

= (4.4 / 152) * 360

= 0.02895 * 360

= 10.422°

a) 152 cm

b) 0.725 ms

c) 10°

You might be interested in
One of the main differences between the intaglio and the relief printing processes is that with intaglio the ink ________ the su
TEA [102]
The answer to this question is "LIES BELOW THE SURFACE" happens or occurs. When one of the main differences between the two which is the Intaglio and the other one is the relief printing processes is that with the Intaglio the ink LIES BELOW the surface of the printing plate.
5 0
4 years ago
What is Hooke's law? what is meant by elastic limit?<br>please answer me​
3241004551 [841]

Answer:

Hooke's law describes the elastic properties of materials only in the range in which the force and displacement are proportional. Hooke's law states that the applied force F equals a constant k times the displacement or change in length x, or F = kx. the maximum extent to which a solid may be stretched without permanent alteration of size or shape, is called elastic limit

mark me brainliestt :))

6 0
3 years ago
the lever in the figure below accomplishes 5.0 newtons-meters of work raising a 25 newton weight. How far,in meters is the weigh
miv72 [106K]

The simple definition of work is the product of the force applied to the object and the displacement:

W = Fd

W is the work, F is the applied force, and d is the displacement.

Givens:

W = 5.0N-m

F = 25N (the applied force must be at least equal to the weight to lift it)

Plug in the given values and solve for d:

5.0 = 25d

d = 0.20m

3 0
3 years ago
विद्यार्थी जीवनमा अनुशासनको महत्व essay​
loris [4]

विद्यार्थी जीवनमा अनुशासनको विशेष महत्व हुन्छ। विद्यार्थी जीवन मा, विद्यार्थीहरु अनुशासित भएर आफ्नो जीवन मा सफलता प्राप्त गर्न सक्छन्। राम्रो शिक्षा हरेक विद्यार्थी नियमहरु को पालन गर्नु पर्छ

विद्यार्थी जीवन मा, प्रत्येक विद्यार्थी स्कूल को नियम अनुसार हिड्नु पर्छ। उसले आफ्ना शिक्षकहरुको आदेश पालन गर्नु पर्छ। उहाँको आदेश पालना गरेर, एक चरित्र, एक आदर्श र एक योग्य नागरिक बन्नुहोस्।

तसर्थ, प्रत्येक विद्यार्थी अनुशासन को पालन गर्नु पर्छ आफ्नो जीवन खुशी बनाउन को लागी। यसको साथसाथै, प्रत्येक विद्यार्थीले समय बर्बाद नगरी आफ्नो लक्ष्य हासिल गर्न कडा मेहनत गर्नुपर्छ।

5 0
3 years ago
Read 2 more answers
What is centripental force?
agasfer [191]

Answer:

Centripetal force is the force that is necessary to keep an object moving in a curved path and that is directed inward towards the center of rotation.

Explanation:

Definition of centripetal force:

Centripetal force is the force that is necessary to keep an object moving in a curved path and that is directed inward towards the center of rotation.

Example of centripetal force

A string on the end of which a stone is whirled about exerts a centripetal force on the stone.

The diagram is shown below

Where

The centripetal forces acting towards the centre C that is \vec {AC}

and the direction is from A to C.

And the stone is moving in a circular motion with center as C.

7 0
3 years ago
Other questions:
  • An underground layer of rock that contains fresh water that can be extracted is a(n)
    7·2 answers
  • You look down an old well, cannot see the bottom, and mutter to yourself "Oh well!". In order to estimate the depth of the well,
    6·1 answer
  • Water is a compound.<br> O A. True<br> B. False
    6·2 answers
  • A cylindrical tungsten filament 14.0 cmcm long with a diameter of 1.00 mmmm is to be used in a machine for which the temperature
    11·1 answer
  • Betty hits a baseball.
    11·1 answer
  • A wagon is pulled to the right using a force of 20 N and to the left using a force of
    14·1 answer
  • Balance the equation by choosing the correct coefficient numbers in the drop down menus.
    6·1 answer
  • the distance between two charges q a and q b is r and the force between them is F. What is the force between them if the distanc
    11·2 answers
  • There is a square loop of wire with side length L moving to the right at a speed of v. The resistance in the wire is R. To the r
    15·1 answer
  • a motorcyclist drives north for 35 minutes at 85 km/h and then stops for 15 minutes. then he continues north, traveling 130 km i
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!