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SVEN [57.7K]
3 years ago
14

Explain applications

Physics
1 answer:
hoa [83]3 years ago
3 0

Answer:

See explanation

Explanation:

MRI: Magnetic resonance imaging (MRI) is a modern medical imaging technique that have proven to be invaluable in radiology because it is used to obtain pictures of the anatomy and the physiological processes of the human body. MRI scanners make use of strong magnetic fields and radio waves to obtain images of the target organs of the human body.

X-Ray: X-ray is an electromagnetic wave. It is used in medicine to examine the body in order to locate broken bones and metallic objects like bullets. It is used to detect flaws in metal castings and in airports to detect metals in baggage. It is used to investigate the structure of crystals as well as in cancer treatment.

Ultrasound: In medicine, the applications of ultrasound may be  surgical, therapeutic, or diagnostic. Also, It is used to detect defects, flaws, cracks in machine parts, bridges and buildings.

Infrared Radiation : Infrared thermal-imaging cameras can be used to take pictures even in the dark. It is very useful in heat sensing. Lastly, it is used in chemistry to study chemical bonds.

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A ball has a diameter of 3.79 cm and average density of 0.0838 g/cm3.
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Answer: 0.258 N

Explanation:

As the density of the object is much less than the density of water, it’s clear that the buoyant force, is greater than the weight of the object, which means that in normal conditions, it would float in water.

So, in order to get the ball submerged in water, we need to add a downward force, that add to the weight, in order to compensate the buoyant force, as follows:

F = Fb – Fg

Fb= δH20* 4/3*π*(d/2)³  * g

Fg = δb* 4/3*π*(d/2)³ *g

F= (δH20- δb) * 4/3*π*(d/2)³*g

Replacing by the values of the densities, and the ball diameter, we finally get:

F= 0.258 N

3 0
3 years ago
If two bicycles of same masses move at different velocities,it will be easier to stop the bicycle that is moving at lower veloci
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Answer:

It is easier to stop the bicycle moving at a lower velocity because it will require a <em>smaller force</em> to stop it when compared to a bicycle with a higher velocity that needs a<em> bigger force.</em>

Explanation:

The question above is related to "Newton's Law of Motion." According to the <em>Third Law of Motion</em>, whenever an object exerts a force on another object <em>(action force)</em>, an equal force is exerted against it. This force is of the same magnitude but opposite direction.

When it comes to moving bicycles, the force that stops their movement is called "friction." Applying the law of motion, the higher the speed, the higher the force<em> </em>that is needed to stop it while the lower the speed, the lower the force<em> </em>that is needed to stop it.

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3 years ago
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<span>Antimony I am pretty sure is one. </span>
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