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adelina 88 [10]
3 years ago
5

Which of the following types of waves can transmit only through matter? Select all that apply. (Hint: there are 2)

Physics
1 answer:
Anarel [89]3 years ago
7 0
A) seismic waves
b) sound waves

sound waves are traveling vibrations of particles in media (air, water, metal, etc) so they can’t travel through empty space (vacuums) because there are no atoms or molecules to vibrate.

seismic waves are mechanical waves and require a medium for propagation, hence, they cannot travel through a vacuum.

hope this helps :)
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______ energy is defined as the energy of motion.
MatroZZZ [7]
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3 years ago
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Which of the following describes volume?
kolezko [41]
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5 0
3 years ago
A spring scale hung from the ceiling stretches by 6.1 cm when a 2.0 kg mass is hung from it. The 2.0 kg mass is removed and repl
Hunter-Best [27]

The ideal spring equation is

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This says that the stretch is directly proportional to the force.
In simple English, that means that if you double the force, then
you double the stretch, and if you multiply the force by  π  or
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So you can always write a proportion for a spring:

                 Stretch₁ / Force₁  =  Stretch₂ / Force₂ .

Part A:

In Part-A of this question, the force is increased to  (2.5 / 2.0) =  1.25 times .

So the stretch is also increased to  1.25 times .

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6 0
4 years ago
A 17-cm-long microscope has an eyepiece with a focal length of 2.7 cm and an objective with a focal length of 0.35 cm . What is
Marta_Voda [28]

Answer:

Magnification is approximately 7.71

Explanation:

Magnification is the process of enlarging the apparent size of an object. For two lenses in sequence such as in a microscope, the magnification is determined by the ratio of the focal length of the eyepiece lens to the focal length of the objective lens.

The focal length of a lens is the distance between the center of a lens and the point (focal point) where parallel rays converge after passing through the lens.

M = magnification

f_{e} = focal length of eyepiece lens

f_{o} = focal length of objective lens

M = \frac{f_{e}}{f_{o}}

M = \frac{2.7}{0.35}

M = 7.71

8 0
3 years ago
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uysha [10]

Okay, I don't know if this question is supposed to be a trick question or not. The weight of the apple does not change as the plane travels up the atmosphere, but the MASS changes. Weight doesn't change no matter what environment you're in, but the mass changes in different environments. In this case, the weight is constant but the mass is decreasing as you go higher up.
5 0
3 years ago
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