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Korvikt [17]
3 years ago
5

Sound wave of a wave length of 0.56 meters if its speed is 280 m/s what is the wave frequency

Physics
1 answer:
Reika [66]3 years ago
5 0

Answer:

500 Hz

Explanation:

Formula for finding wave frequency is,

f = c/λ

f = frequency

c = speed (m/s)

λ = wave length (m)

f = c/λ

f = 280/0.56

f = 500

∴ wave frequency is 500 Hz

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580 nm light shines on a double slit with d=0.000125 m. What is the angle of the third dark interference minimum(m=3)?
sveta [45]

Answer:

0.796 degree

Explanation:

We are given that

Wavelength=\lambda=580 nm=580\times 10^{-9} m

1nm=10^{-9} m

d=0.000125 m

We have .to find the angle of the third dark interference minimum=3

sin\theta=\frac{m\lambda}{d}

Using the formula

sin\theta=\frac{3\times 580\times 10^{-9}}{0.000125}

sin\theta=0.0139

\theta=sin^{-1}(0.0139)

\theta=0.796^{\circ}

Hence, the angle of the third dark interference minimum=0.796 degree

7 0
3 years ago
Read 2 more answers
A 570 kg elevator accelerates downwards at 1.5 m/s2 for the first 13 m of its motion.
jeka94
  • Mass of the elevator (m) = 570 Kg
  • Acceleration = 1.5 m/s^2
  • Distance (s) = 13 m
  • Let the force be F.
  • We know, F = ma,
  • Therefore, F = (570 × 1.5) N = 855 N
  • Angle between distance and force (θ) = 0°
  • We know, work done = F s Cos θ
  • Therefore, work done by the cable during this part
  • = (855 × 13 × Cos 0°) J
  • = (855 × 13 × 1) J
  • = 11115 J

<u>Answer</u><u>:</u>

<u>1</u><u>1</u><u>1</u><u>1</u><u>5</u><u> </u><u>J</u>

Hope you could get an idea from here.

Doubt clarification - use comment section.

6 0
3 years ago
John recently suffered a blow to his head. Since then, he finds it difficult to comprehend what others say to him. He also finds
katovenus [111]

Answer: ​Wernicke's aphasia

Explanation:

John recently suffered a blow to his head. Since then, he finds it difficult to comprehend what others say to him. He also finds it difficult to express his thoughts and cannot seem to find the right words to say while speaking. However, he can speak freely with proper syntax. In this scenario, John is most likely suffering from Wernicke's aphasia.

Wernicke's aphasia occurs when the leftward side of the middle of the brain is damaged or has been altered. An individual who suffers from Wernicke's aphasia will have difficulty in speaking in meaningful and coherent sentences or may have difficulty in understanding the speech of others.

6 0
3 years ago
A train travels 2975 miles in 3 days how far is it moving per day?
uysha [10]

Answer:

991.67 miles per day

Explanation:

Since it travels 2975 miles per day, distance traveled in a day =2975/3=991.67 miles

7 0
3 years ago
Please help on this one?
Roman55 [17]

it is A.

Because B. Is just way off

C. Is just straight

And D. Is just....yea



5 0
3 years ago
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