1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sweet [91]
2 years ago
5

I have to make a presentation about ultrasound diagnostic (it's for physics). Does someone know more about that topic? I need to

explain how does ultrasound show insides of human body.
*sorry if my english isn't that good, im from Cro​
Physics
1 answer:
xenn [34]2 years ago
4 0

Answer: Okay so I don't know much but from what I do know

Ultrasound emits sound waves into the body and what bounces back is what they can see the grey shape is what is closest. It's all micro sound waves and cannot hurt an unborn baby.

Explanation:

Not sure if this is correct but it is what I remember being told.

Hope this helps!

You might be interested in
In the figure, a weightlifter's barbell consists of two identical small but dense spherical weights, each of mass 50 kg. These w
kondaur [170]

The moment of inertia is 24.8 kg m^2

Explanation:

The total moment of inertia of the system is the sum of the moment of inertia of the rod + the moment of inertia of the two balls.

The moment of inertia of the rod about its centre is given by

I_r = \frac{1}{12}ML^2

where

M = 24 kg is the mass of the rod

L = 0.96 m is the length of the rod

Substituting,

I_r = \frac{1}{12}(24)(0.96)^2=1.84 kg m^2

The moment of inertia of one ball is given by

I_b = mr^2

where

m = 50 kg is the mass of the ball

r=\frac{L}{2}=\frac{0.96}{2}=0.48 m is the distance of each ball from the axis of rotation

So we have

I_b = (50)(0.48)^2=11.5 kg m^2

Therefore, the total moment of inertia of the system is

I=I_r + 2I_b = 1.84+ 2(11.5)=24.8 kg m^2

Learn more about inertia:

brainly.com/question/2286502

brainly.com/question/691705

#LearnwithBrainly

6 0
3 years ago
Which of the following statements about energy is true? I. Kinetic energy cannot be transformed into another type of energy. II.
Mashcka [7]

Answer: B. II and III only

Explanation:

Let’s begin by explianing what energy is: the ability of matter to produce work in the form of movement, light, heat, among others. In this sense, there are several types of energy, but we will talk especifically in this case about <u>kinetic energy</u> and <u>potential energy</u>.

<u>Kinetic energy </u>is the energy an object or body has due to its movement and depends on the mass and velocity of the object or body.

To understande it better: If an object is at rest, its velocity is null and it does not have kinetic energy, however, if the object is moving, then it has kinetic energy.

On the other hand, <u>Potential energy</u> is known as <em>“stored energy”</em> that has the potential to be converted into energy of motion (kinetic energy) or another type of energy (thermal energy, for example). In addition, this energy is related to the work done when a certain force moves an object or body from its natural resting state along a distance to a new position.

So, according to this, Kinetic energy can be transformed into potential energy and Potential energy can be transformed into kinetic energy or any other type of energy. Hence, options II and III are correct.

8 0
3 years ago
Read 2 more answers
Which statement about van der Waals forces is true?
kobusy [5.1K]
The answer is A. When the forces are weaker, they will not be able to hold the particles of the substances together; therefore, the substance will be observed as being volatile.
3 0
3 years ago
Read 2 more answers
10 rectangular object's mass from greatest to least. You can choose books, sandwiches, phones, pictures - as long as the shape i
Greeley [361]

Answer: 1 is phone 2 is sandwich, Last is picture.

Explanation: I hoped That Helped !!

7 0
3 years ago
g At some point the road makes a right turn with a radius of 117 m. If the posted speed limit along this part of the highway is
user100 [1]

Answer:

Ф = 28.9°

Explanation:

given:

radius (r) = 117m

velocity (v) = 25.1 m/s

required: angle Ф

Ф = inv tan (v² / (r * g))      we know that g = 9.8

Ф = inv tan (25.1² / (117 * 9.8))

Ф = 28.9°

6 0
3 years ago
Other questions:
  • Sharks are generally negatively buoyant; the upward buoyant force is less than the weight force. This is one reason sharks tend
    15·1 answer
  • Carlos is baking a cake. The last step in the directions is to put the cake batter in the oven. Why does Carlos need to put the
    5·2 answers
  • What happens during evaporation? A liquid changes to a gas. A liquid changes to a solid. A gas changes to a liquid. A solid chan
    14·2 answers
  • How can i express 2.99792458 x10^8 in three insignificante figures
    6·1 answer
  • why does light look colorless and how is made (I know this just Wana see if anyone will get it correct )
    12·1 answer
  • Determine the frequency of light whose wavelength is 4.257 x 10-7 cm
    13·1 answer
  • I need help on this science
    8·1 answer
  • What is the length of the x-component of the vector shown below?<br> у<br> 6<br> 28°
    6·1 answer
  • What is the difference in force of a car and a tractor
    10·1 answer
  • Si un astronauta tiene una masa de 72kg si el valor de g en la luna es 1.6m/s2, ¿cual es la fuerza gravitacionar de la luna sobr
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!