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tatuchka [14]
3 years ago
11

What equation can be used to calculate either wavelength, frequency or speed?

Physics
1 answer:
lakkis [162]3 years ago
7 0

Answer:

speed = wavelength * frequency

Explanation:

Thenks and mark me brainliest :)

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System uses 49J of energy to do work in the change of internal energy is 58 j. how much heat was added to the system?
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Answer:

107

Explanation:

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3 years ago
Define stress engineering science​
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Stress, in physical sciences and engineering, force per unit area within materials that arises from externally applied forces, uneven heating, or permanent deformation and that permits an accurate description and prediction of elastic, plastic, and fluid behaviour.

Explanation:

hope i could help

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3 years ago
Light from a helium-neon laser (λ=633nm) passes through a circular aperture and is observed on a screen 5.80 mm behind the apert
Helga [31]

Explanation:

Whenever the light passes through hole or slit then it tends to bend that is actually a diffraction. It will then made the interference pattern of light and dark bands that due to constructive and destructive interference.

So by using the equation of diffraction,

dsinA = nL

SinA is a geometric component it can be written as,

d\frac{y}{x} = nL

∵ x is the distance from screen.

∵ y is the half of the width of central maximum.

now by putting the values in mm,

d\frac{17}{5.80} = 0.000633

d = 2.15×10^{-4} mm

7 0
3 years ago
A heat engine operates between a hot reservoir with a temperature of 400 K and a cold reservoir with a temperature of 300 K. The
natali 33 [55]

Answer:

Explanation:

Given

Temperature of Hot reservoir T_1=400 K

Temperature of Cold reservoir T_2=300 K

Heat reservoir Q=500 J

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heat Exhaust Q_{rejection }=350 J

Q=W+Q_{rejected}

500=150+350

L.H.S=R.H.S

thus it follows first law

\eta _{carnot}=1-\frac{T_L}{T_H}

\eta _{carnot}=1-\frac{300}{400}

\eta _{carnot}=0.25

Cycle Efficiency

\eta =\frac{W}{Q}=\frac{150}{500}=0.3

Carnot efficiency is less than cycle thus it violates second law

3 0
4 years ago
Please choose the answer that describes the scientific notation for 5,098,000. 
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D. 5.098 x 106 is the correct answer when reduced to the proper notation.
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4 years ago
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