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SCORPION-xisa [38]

2 years ago

12

Which process produce x-ray?

1 answer:

vovangra [49]2 years ago

5 0

Answer:

X-rays are commonly produced in X-ray tubes by accelerating electrons through a potential difference (a voltage drop) and directing them onto a target material

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The diagram shows waves of sound travelling through the air. By which factor is the sound intensity decreased at 3 meters?

SIZIF [17.4K]

The diagram is missing; however, we know that the intensity of a sound wave is inversely proportional to the square of the distance from the source:
$I(r)= \frac{1}{r^2}$
where I is the intensity and r is the distance from the source.

We can assume for instance that the initial distance from the source is r=1 m, so that we put
$I= \frac{1}{r^2}= \frac{1}{(1)^2}=1$
The intensity at r=3 m will be
$I= \frac{1}{r^2}= \frac{1}{(3)^2}= \frac{1}{9}$
Therefore, the sound intensity has decreased by a factor $1/9$ .

8 0

3 years ago

Read 2 more answers

Which image shows an example of the strong nuclear force in action?

dusya [7]

i think this is the incomplete page that you are showing but the answer is

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<h2><u>B</u></h2>

6 0

3 years ago

Suppose you increase your walking speed from 7 m/s to 15 m/s in a period of 2 m. What is your acceleration?

likoan [24]

Acceleration = (change in speed) / (time for the change)

Change in speed = (end speed) - (start speed) = (15 m/s - 7 m/s) = 8 m/s

time for the change = 2 minutes = 120 seconds

Acceleration = (8 m/s) / (120 seconds)

Acceleration = 0.067 m/s²

7 0

3 years ago

The graphic organizer above shows that the properties of waves are influenced by the energy of waves. Name 2 properties of waves

Stells [14]

Amplitude: the height of the wave<span>, measured in meters
</span><span>Wavelength: the distance between adjacent crests, measured in meters
</span>

3 0

3 years ago

Match to the correct answers

yarga [219]

A. You measure power on watts.
B. Non-renewable
C.renewable
D. Joules
E. Fossil fuels

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3 years ago