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irina [24]
3 years ago
7

An electromagnetic radio wave is received by a transmitter before it is converted to a sound wave. The radio wave has a waveleng

th of 23,076 m and a frequency of 13,000 Hz. What velocity is the wave traveling at before the transmitter converts it to a sound wave?a. 1.76 m/sb. 0.56 m/sc. 3.31 × 102 m/sd. 3.00 × 108 m/s
Physics
1 answer:
Dennis_Churaev [7]3 years ago
3 0

Answer:

h5

Explanation:

h65hhrhry

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Describe difference between instantaneous velocity and average velocity
Alexxandr [17]

Answer:

The instantaneous velocity is the specific rate of change of position (or displacement) with respect to time at a single point (x,t) , while average velocity is the average rate of change of position (or displacement) with respect to time over an interval.Average velocity : Average velocity of a body is defined as the change in position or displacement (Δx) divided by time interval (Δt) in which that displacement occurs.

Instantaneous velocity : The instantaneous velocity of a body is the velocity of the body at any instant of time or at any point of its path .

velocity can be positive , negative or zero.

By studying speed and velocity we come to the result that at any time interval average speed of an object is equal or more than the average but instantaneous speed is equal to instantaneous velocity.

3 0
2 years ago
HELP ASAP! GIVING BRAINLIEST!!!<br><br> I need the answers to 1,2,3!!
artcher [175]

1) 72/4 = 18 years

2) 72/10 = 7.2 years

3) 72/13 = 5.54 years

Explanation: With the rule of 72, you simply take 72 and divide it by whatever the rate of return (or return on investment) is.

Let me know if you have any questions.

7 0
3 years ago
The spectrum produced by a prism or a raindrop is evidence that the average speed of light in the material depends on the light'
Alja [10]
The correct answer for the question that is being presented above is this one: "B. color." The spectrum produced by a prism or a raindrop is evidence that the average speed of light in the material depends on the light's color. White light is being refracted into different colors.
4 0
3 years ago
Your bedroom has a rectangular shape and you want to measure its size. You use a tape that is precise to 0.001 m and find that t
Alex73 [517]

Your bedroom has a rectangular shape, and you want to measure its area. You use a tape that is precise to 0.001 and find that the shortest wall in the room is 3.547 long. The tape, however, is too short to measure the length of the second wall, so you use a second tape, which is longer but only precise to 0.01 . You measure the second wall to be 4.79 long. Which of the following numbers is the most precise estimate that you can obtain from your measurements for the area of your bedroom?

b)If your bedroom has a circular shape, and its diameter measured 6.32 , which of the following numbers would be the most precise value for its area?

a)30 m^2

b) 31.4 m^2

c)31.37 m^2

d)31.371 m^2

Answer:

Part A

A  =  16.99 \ m^2

Part  B

 A_r =31.37 \ m^2

Explanation:

From the question we are told that

   The  shortest wall is  x =  3.547 \ m

      The  length of the second wall is y  =  4.79 \ m

Generally the area is mathematically evaluated as

           A =  x *  y

=>    A  =  3.547 *  4.79

=>   A  =  16.99 \ m^2

Given that the diameter is  d =  6.32

Then the area is  

         A_r =  \pi \frac{d^2}{4}

         A_r =3.142 *   \frac{6.32^2}{4}

        A_r =31.37 \ m^2

3 0
3 years ago
Scientists create models of atoms because atoms _____.
Marianna [84]

Answer:

Are very small.

Explanation:

Scientists use models to study atoms because atoms are extremely small and can't even be seen.

5 0
2 years ago
Read 2 more answers
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