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irga5000 [103]
3 years ago
7

5. What is the speed of a wave in a spring if it has a wavelength of 10 cm and a period of 0.2s

Physics
1 answer:
eimsori [14]3 years ago
7 0

Explanation:

speed of wave

v = wavelength x frequency

since frequency is f = 1/Period then

v = wavelength : Period

v = 10 cm/ 0.2 s = 50 cm/s

v = 0.5 m/s

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A mechanic changing the spark plugs in a car notes that the instruction manual calls for a torque with a magnitude of
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<h3>Force exerted by the wrench</h3>

The force exerted by the wrench is calculated using torque formula as follows;

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where;

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2 years ago
In a Young's double-slit experiment, 610-nm-wavelength light is sent through the slits. The intensity at an angle of 2.95° from
Sliva [168]

Answer:

spacing between the slits is 405.32043 ×10^{-9}  m

Explanation:

Given data

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solution

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∅ = 2 ×cos^{-1} 0.921954

∅  = 45.56°

∅  = 45.56° ×π/180 = 0.7949 rad

and we know that here

∅  = 2π d sinθ / wavelength

so

d = ∅× wavelength /  ( 2π  sinθ )

put all value

d = 0.795 × 610×10^{-9} / ( 2π  sin2.95 )

d = 405.32043 ×10^{-9}  m

spacing between the slits is 405.32043 ×10^{-9}  m

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