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
Andre45 [30]
3 years ago
11

Wave A has an amplitude of 2 and wave B has an amplitude of 2 as shown below. What will happen when the crest of wave A meets th

e trough of wave B? They will interfere to create a crest with an amplitude of 4. They will interfere to create a crest with an amplitude of 2. They will interfere to create a crest with an amplitude of 0. They will bounce off each another.
Physics
2 answers:
puteri [66]3 years ago
6 0
Since the two waves have equal amplitudes, if the crest of one wave
meets the trough of the other one, they'll add to produce a level of zero
at that location.
Ugo [173]3 years ago
3 0

The correct answer to the question is- They will interfere to create a crest with an amplitude of 0.

EXPLANATION:

Before going to answer this question, first we have to understand destructive interference.

The two super imposing waves are said to be doing destructive interference if the crest of one wave falls on the trough of another wave.

Let the amplitudes of  two waves are A and B.

The phases difference (\theta) will be 180 degree for destructive interference.

Hence,the amplitude of the resultant wave is calculated as -

                                          R =  \sqrt{A^2+B^2+2ABcos\theta}

                                             = \sqrt{A^2+B^2+2ABcos180}

                                             = \sqrt{A^2+B^2-2AB}

                                             = A-B

Here, the amplitude of first wave A = 2

  The amplitude of second wave B = 2

Hence, amplitude of resultant wave R = 2-2

                                                                = 0

Hence, the correct answer will be - They will interfere to create a crest with an amplitude of 0.

                               

You might be interested in
Help !!!! Estimate the number of breaths taken by a person during 44 years?
Lisa [10]
44 x 12. I got the 12 from the total of 12 months in a year.


44 > 40

x
12 > 10
----------
The way my teacher taught me how to estimate is look at the neighbor to 44 and 12. The only time 44 can become 50, is when the neighbor is 5 or up. Same thing for 12. Now, multiply 40 and 10.

40 x 10 = 400.

Therefore, your estimate is 400.

The real answer is 520 breaths.
6 0
2 years ago
What determines an object’s thermal energy
Tems11 [23]

Answer:

temperature and mass

Explanation:

  • The higher the temperature of a given quantity of a substance, more is its thermal energy.

  • If a substance contains more mass, this also implies that the object has more particles in it . hence, it has high thermal energy.

<em><u>A</u></em><em><u>d</u></em><em><u>d</u></em><em><u>i</u></em><em><u>t</u></em><em><u>i</u></em><em><u>o</u></em><em><u>n</u></em><em><u>a</u></em><em><u>l</u></em><em><u> </u></em><em><u>I</u></em><em><u>n</u></em><em><u>f</u></em><em><u>o</u></em><em><u>r</u></em><em><u>m</u></em><em><u>a</u></em><em><u>t</u></em><em><u>i</u></em><em><u>o</u></em><em><u>n</u></em><em><u> </u></em>:

  • Temperature is a measure of the average kinetic energy of the particles of a substance.

  • The thermal energy of an object depends on three factors:

  1. number of molecules in the object
  2. temperature of the object.
  3. thermal energy it has.
3 0
2 years ago
Metamorphic rocks are formed at high temperature and medium to low pressure
storchak [24]

Answer: are u kidding

Explanation:

6 0
3 years ago
A soccer ball is rolling past Ramon. He kicks it in the same direction that it IS rolling. What will MOST LIKELY happen?
vovikov84 [41]

<u>Answer:</u>

<h2 /><h2>A) The ball will speed up.</h2>
6 0
2 years ago
Read 2 more answers
Hey everyone<br><br><br>what is optics??​
lana66690 [7]

Explanation:

Optics is a branch of physics that is the study of light and vision. ... The branch of physics dealing with the nature and properties of electromagnetic energy in the light spectrum and the phenomena of vision. In the broadest sense, optics deals with infrared light, visible light, and ultraviolet light.

7 0
3 years ago
Other questions:
  • If the value of static friction for a couch is 400N, what could be a possible value of its kinetic friction? *
    9·1 answer
  • What is the job of chlorophyll in photosynthesis?
    6·2 answers
  • 7. Water flows trough a horizontal tube of diameter 2.5 cm that is joined to a second horizontal tube of diameter 1.2 cm. The pr
    13·1 answer
  • Q3. A bridge is built without expansion gaps.
    8·1 answer
  • Estimate the boiling point of water at a pressure of 1.1 atmosphere
    15·1 answer
  • Intensity of light in SI system​
    15·1 answer
  • When you stand up on your feet your feet cover an area of about 0.2 m2. Your feet push on the ground with a pressure of 50 lbs f
    12·1 answer
  • A man is using a fishing rod to catch fish in figure 1.
    13·1 answer
  • During the experiment it is determined that, as the cart rolls between two points on the track, the work done on the cart by the
    5·1 answer
  • An object with a mass of m = 122 kg is suspended by a rope from the end of a uniform boom with a mass of M = 74.9 kg and a lengt
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!