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MAXImum [283]
3 years ago
14

Doppler radar is dependent on the _____ waves that are reflected back by water particles. light sound x-rays radio

Physics
2 answers:
Ugo [173]3 years ago
7 0
Doppler radar is dependent on the radio waves that are reflected back by the water particles. The correct option among all the options that are given in the question is the last option. A Doppler radar is a specialized kind od radar that is used to calculate the distance of objects from a specific object. It emits radio waves and receives the incoming waves to calculate the distance.<span />
Mkey [24]3 years ago
7 0

Answer:

Radio waves

Explanation:

Doppler radar is dependent on the radio waves that are reflected back by water particles. The radar ejects a signal which travels and hits the moving target at some speed. The radar then receives the reflected signal and then compares the change in the frequency of the signal to determine the speed of the target.

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3. If a vector that is 1 cm long represents a
prisoha [69]

Answer:

A velocity of 20 \: km/h

Explanation:

Since the magnitude of the vector is equal to the magnitude of velocity, velocity of the 2 cm vector represents a velocity of $10\times 2= 20 \: km/h$.

8 0
3 years ago
A teacher performing demonstration finds that a piece of cork displaces 23.5 ml of water. The piece of cork has a mass 5.7 g. Wh
Sedbober [7]

Answer: 0.24g/ml

Explanation:

Given that:

Volume of water displaced = 23.5 ml

Mass of cork = 5.7 g

Density of the cork = ?

Recall that density is obtained by dividing the mass of a substance by the volume of water displaced.

i.e Density = Mass/volume

Density = 5.7g /23.5ml

Density = 0.24g/ml

Thus, the density of the piece of cork is 0.24g/ml

8 0
4 years ago
Does an infrared wave or an x-ray travel faster in the vacuum of space?
Aneli [31]
Ok no se si te puedo
3 0
3 years ago
Read 2 more answers
An instructor gives a demonstration in which he makes a standing wave on a long thin slinky. The slinky is 6.0 meters long. If y
Naily [24]

The characteristics of standing waves allows to find the result for the speed of the wave is:

  • The speed wave is:  v = 10 m / s

The wave is a way of transmitting energy without mass displacement, , in the attachment we can see a diagram of the standing wave.

Each cycle corresponds to half a wavelength,  they indicate that the frequency is 2.50 Hz and there are three cycles, so the wavelength is:

      L = n \frac{\lambda}{2}

      λ = 2L/n

      λ = 2 6 /3

       λ = 4 m

Wave speed is related to wavelength and frequency

        v = λ f

         v = 4 2.5

         v = 10 m / s

In conclusion, using the characteristics of standing waves we can find the result for the speed of the wave is:

  • The wave speed is:   v = 10 m / s

Learn more here: brainly.com/question/12536719

8 0
3 years ago
Select all that apply.
GenaCL600 [577]

The correct answer to the question is: A) miles/hour and B) metre/ second.

EXPLANATION:

Before answering this question, first we have to understand speed.

The speed of a body is defined as the rate of distance travelled or the distance travelled by a body per unit time.

Hence, it is a derived quantity which is obtained from distance and time.

The unit of distance can be metre, miles, and the unit of time can be second, minutes or hour.

As speed is the distance covered per unit time, the perfect units will be miles/hour and metre/second.

Hence, the correct options are first and second.

5 0
4 years ago
Read 2 more answers
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