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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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The emissivity of an ideal reflector has which of the following values?
Wittaler [7]

Emissivityis a measure of how much thermal radiation a body emits to its environment. On the other hand we have that reflectivity is a measure of how much is reflected, and transmissivity  is a measure of how much passes through the object. If a body is required to be ideally reflective to its maximum efficiency, the body should NOT have the property of transmissivity or emissivity. Therefore it should be 0 its emittivity.

Correct answer would be A : ZERO.

4 0
3 years ago
In science, a broad idea that has been repeatedly verified so as to give scientists great confidence that it represents reality
Colt1911 [192]

In science, a broad idea that has been repeatedly verified so as to give scientists great confidence that it represents reality is called "a theory".

<u>Explanation:</u>

In science, the interpretation of a feature of the organic world that can be tested in repeat manner and analysed by applying agreed tests validation methods, calculation and observation in according to the scientific method, such process is called as a theory in science.

The difference lie between a theory and a hypothesis. Because hypothesis is an "educated guess". Overall it is either a proposed interpretation of an observed phenomenon, or a logical inference of a possible causal association between several phenomena.

6 0
2 years ago
If you are standing at a beach on Earth at the same time that the shadow of the moon falls across your location, what event woul
Tcecarenko [31]

A solar eclipse .....................

5 0
2 years ago
Object A of mass 0.70 kg travels horizontally on a frictionless surface at 20 m/s. It collides with object B, which is initially
AnnZ [28]

Answer:

25.71 kgm/s

Explanation:

Let K₁ and K₂ be the initial and final kinetic energies of object A and v₁ and v₂ its initial and final speeds.

Given that K₂ = 0.7K₁

1/2mv₂² = 0.7(1/2mv₁²)

v₂ = √0.7v₁ = √0.7 × 20 m/s = ±16.73 m/s

Since A rebounds, its velocity = -16.73 m/s and its momentum change, p₂ = mΔv = m(v₂ - v₁) = 0.7 kg (-16.73 - 20) m/s = 0.7( -36.73) = -25.71 kgm/s.

Th magnitude of object A's momentum change is thus 25.71 kgm/s

6 0
2 years ago
You are traveling at 100 km/hr to make it to work on time. You have to be to work in .25 hr or you will be late. You have 16 km
alexgriva [62]

Answer: Yes

Explanation:

Velocity V is defined as the distance traveled d in a specific time t:

V=\frac{d}{t}

If you are traveling at V=100 km/h a distance d=16 m, then the time it will take you to be at work is:

t=\frac{d}{V}=\frac{16 km}{100 km/h}

t=0.16 h

This means you will make it on time, because this time is less than 0.25 h.

4 0
3 years ago
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