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klio [65]
3 years ago
12

Listening to the radio, you can hear two stations at once. Describe this wave interaction

Physics
2 answers:
vodka [1.7K]3 years ago
4 0

That situation is called <em>interference </em>.

cupoosta [38]3 years ago
4 0

Answer: The correct answer is "interference".

Explanation:

Interference: It is a phenomenon in which there is a superposition or a overlapping of the waves occur in the same medium. The resulting wave may have minimum amplitude or maximum amplitude. The interference can be : constructive and destructive depending on the amplitude of the resulting wave.

When the frequencies of the waves are not identical but they are similar interfere then the resulting wave is a beat frequency. Beat frequency is a pulsing sound. It goes up and down in loudness.

When you listen to the radio, you hear two stations at once. This interaction of this wave is interference.

Therefore, the correct option is (B).

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A factory worker pushes a 32.0 kg crate a distance of 7.0 m along a level floor at constant velocity by pushing horizontally on
g100num [7]

Answer:

(a) 81.54 N

(b) 570.75 J

(c) - 570.75 J

(d) 0 J, 0 J

(e) 0 J  

Explanation:

mass of crate, m = 32 kg

distance, s = 7 m

coefficient of friction = 0.26

(a) As it is moving with constant velocity so the force applied is equal to the friction force.

F = 0.26 x m x g = 0.26 x 32 x 9.8 = 81.54 N

(b) The work done on the crate

W = F x s = 81.54 x 7 = 570.75 J

(c) Work done by the friction

W' = - W = - 570.75 J

(d) Work done by the normal force

W'' = m g cos 90 = 0 J

Work done by the gravity

Wg = m g cos 90 = 0 J

(e) The total work done is

Wnet = W + W' + W'' + Wg = 570.75 - 570.75 + 0 = 0 J  

6 0
3 years ago
Select the correct answer.
wolverine [178]
The answer is C in this question.
5 0
3 years ago
Read 2 more answers
Average speed can be represented by the mathematical expression
nevsk [136]

Average speed is defined as total distance moved in total interval of time

so it is given as

v_{avg} = \frac{distance}{time}

now here is we show distance by "d" and time by"t"

then we will have mathematical expression as follows

v = \frac{d}{t}

5 0
3 years ago
A satellite with a mass of 2,000 ㎏ is inserted into an orbit that is twice the Earth' s radius. W hat is the force of gravity on
dolphi86 [110]

Answer:

option (b) 4900 N

Explanation:

m = 2000 kg, R = 6380 km = 6380 x 10^3 m, Me = 5.98 x 10^24 kg, h = R

F = G Me x m / (R + h)^2

F = G Me x m / 2R^2

F = 6.67 x 10^-11 x 5.98 x 10^24 x 2000 / (2 x 6380 x 10^3)^2

F = 4900 N

4 0
3 years ago
49 = 1/2gt²
BaLLatris [955]

Answer:

e  son

Explanation:

se lo on

7 0
3 years ago
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