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velikii [3]
3 years ago
12

Which process uses short bursts of sound waves and their reflections to make detailed maps of internal organs inside the body?

Physics
2 answers:
zheka24 [161]3 years ago
5 0

That's a simple description of how <em>ultrasound</em> works.

avanturin [10]3 years ago
5 0

Answer:

Ultrasound

Explanation:

Ultrasound is extensively used in the field of medicine to study the internal organs , which are not visible externally. It helps in getting the details of the abnormalities in the abdomen, liver etc.  For identifying diseases like cancer, this technique of ultrasound imaging is not of that much benefit. In identifying such diseases, CT scan or Magnetic resonance imaging techniques are preferred since those give much better information than just the ultrasound.

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Answer:

it does happen, search in Google

3 0
3 years ago
Read 2 more answers
Question 1 (1 point)
IrinaK [193]
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  5. 2.25 N∙s
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8 0
3 years ago
A sprinter reaches his maximum speed in 2.6 seconds from rest with constant acceleration. He then maintains that speed and finis
Delvig [45]

Answer: maximum speed vmax = 11.42m/s

Explanation:

Given that the sprinter maintained constant acceleration during the first 2.6 seconds.

a = vmax/ta .......1

The distance covered during the acceleration period is;

da = 0.5a(ta)^2 .....2

Substituting equation 1 to 2

da = 0.5(vmax/ta)(ta)^2 = 0.5vmax(ta) .....3

The distance covered during the period of constant speed vmax is;

dv = vmax (tv) ......4

The total distance travelled is

d = da + dv = 100 (Given)

da + dv = 100 ......5

Substituting equation 3 and 4 into 5

0.5vmax(ta) + vmax(tv) = 100

vmax ( 0.5ta +tv) = 100

vmax = 100/(0.5ta + tv) ....6

But,

t = ta + tv

tv = t - ta .......7

Substituting equation 6 into equation 7

vmax = 100/(0.5ta + t - ta)

vmax = 100/(t-0.5ta)

t = 10.06 s

ta = 2.6 s

Substituting the values;

vmax = 100/(10.06 -0.5(2.6))

vmax = 11.42m/s

Note:

ta = acceleration time

tv = constant velocity vmax time

t = overall time

da , dv and d = acceleration, constant velocity and overall distance covered respectively.

8 0
4 years ago
Assume that two cars have the same kinetic energy, but that the red car has twice the speed of the blue car. We then know that t
Anna71 [15]

Answer:

equal

Explanation:

8 0
3 years ago
a vertical solid steel post 29cm in diameter and 2.0m long is required to support a load of 8200kg, ignore the weight of the pos
erik [133]

Answer:

The stress is  \sigma  =  1.218*10^{6} \  N/m^2

Explanation:

From the question we are told that

   The diameter of the post is  d =  29 \ cm  =  0.29 \  m

   The length is L  =  2.0 \  m

    The weight of the loading mass

Generally  the  radius of the post is mathematically represented as

     r =  \frac{0.29}{2}

=>   r = 0.145 \  m

Generally the area of the post is  

       A =  \pi r^2

=>     A =  3.14 *  0.145 ^2

=>     A =  0.066 \ m^2

Generally the weight exerted by the load is mathematically represented as

        F =  m  *  g

=>      F =  8200  *  9.8

=>      F =  80360 \  N

Generally the stress is mathematically represented as

         \sigma  =  \frac{F}{A}

=>      \sigma  =  \frac{80360 }{0.066}

=>      \sigma  =  1.218*10^{6} \  N/m^2

7 0
3 years ago
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