Find the wavelength of a 26 Hz sound wave traveling through air at 20ºC. Hint: speed of sound at 20ºC = 343 m/s

Answers

Answer 1

Answer: The correct answer for the question that is being presented above is this one: "B. 13m."

The formula of wave velocity is this:
wave velocity = f * λ
λ = v / f
λ = 343m/s / 26Hz
λ = 13.20m .. ans (b)

Here are the following choices:
A. 5m
B. 13m
C. 28m
D. 58m

Related Questions

Once the magnet moved closest to the loop in the forward direction, under normal magnet polarity, the approximate magnitude of the induced current shown on the galvanometer was mA.Once the magnet moved closest to the loop in the reverse direction, under normal magnet polarity, the approximate magnitude of the induced current shown on the galvanometer was mA.Once the magnet moved closest to the loop in the forward direction, under reversed magnet polarity, the approximate magnitude of the induced current shown on the galvanometer was mA.
What is the acceleration of a 6.4 kilogram bowling ball if a force of 12 N is applied to it?
Two waves are superposed. One wave has an amplitude of 3 cm, and the other has an amplitude of 4 cm. What is the resultant amplitude?
A research measure that provides consistent results is considered:
What is the average speed of a car that traveled 300.0 miles in 5.5 hours?

Mary starts from her house, walks 80 meters south, and stops to chat with her aunt on the sidewalk. After chatting for a few minutes, she walks 125 meters to the west to meet a friend and then walks 45 meters north with her friend to a cafe for lunch. Overall, she takes 10 minutes to do all this. What is Mary’s average speed?

Answers

The average speed will be:
Total distance travelled divided by time taken
Total distance (in metres)= 80+125+45=250
Total time (minutes) =10
250/10
=25
Thus Mary's average speed is 25 metres per minute.

Answer:

Total distance (in metres)= 80+125+45=250

Total time (minutes) =10

250/10

=25

Explanation:

When water waves approach an obstacle such as the supports holding up a pier, they will bend around the supports. This wave phenomenon is calleda. reflection.
b. refraction.
c. diffraction.
d. polarization.

Answers

It is called diffraction. C. The spreading out of the waves.

Which pulley setup would decrease the amount of effort force needed to lift an objectA) two fixed position pulleys attached to a fixed point above the object that's being lifted

B) one fixed position pulley attached to a fixed point above the object that is being lifted

C) no pulleys just a string attached to an object that is being lifted

D) one moving pulley attached to the object that is being lifted

Answers

Answer;

D) one moving pulley attached to the object that is being lifted

Explanation;

-Pulleys are powerful simple machines. They can change the direction of a force, which can make it much easier for us to move something.

-A fixed pulley consists of a wheel fixed to a shaft and is used in conjunction with a belt to transfer energy to another fixed pulley. A movable pulley consists of a shell, a movable wheel and a rope. Movable pulleys are also know as block and tackle.

-One moving pulley attached to the object that is being lifted decreases the amount of effort force needed to lift an object.

D) one moving pulley attached to the object that is being lifted

Which feature in the diagram contains the youngest rock

Answers

1 because the youngest rock usually lays on top of the layers. Rocks age increase the farther down you go because new rocks form on top of the old. Hope this helped. Have a good day! ;-)

The figure shows a velocity-versus-time graph for a particle moving along the x-axis. At t=0s, assume that x=0m. What is the particle's position at t=3.0s?

Answers

distance = area under graph v-t
area = 4x2 + 1x(2+4)/2 = 11
at 3s, particle is at 11m

True or false : Scientific theories have withstood the test of time and are accepted as proven fact.

Answers

False they are theories they haven't been proven

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