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Nookie1986 [14]
3 years ago
10

- .

Physics
2 answers:
ycow [4]3 years ago
7 0

Answer:

okay I'm a bit confused but I like the little emoji dudw

Masteriza [31]3 years ago
3 0

Answer:

?

Explanation:

.

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A wave with a frequency of 1200 Hz propagates along a wire that is under a tension of 800 N. Its wavelength is 39.1 cm. What wil
mash [69]

Answer:

The wavelength will be 33.9 cm

Explanation:

Given;

frequency of the wave, F = 1200 Hz

Tension on the wire, T = 800 N

wavelength, λ = 39.1 cm

F = \frac{ \sqrt{\frac{T}{\mu} }}{\lambda}

Where;

F is the frequency of the wave

T is tension on the string

μ is mass per unit length of the string

λ is wavelength

\sqrt{\frac{T}{\mu} } = F \lambda\\\\\frac{T}{\mu} = F^2\lambda^2\\\\\mu =  \frac{T}{F^2\lambda^2} \\\\\frac{T_1}{F^2\lambda _1^2} = \frac{T_2}{F^2\lambda _2^2} \\\\\frac{T_1}{\lambda _1^2} = \frac{T_2}{\lambda _2^2}\\\\T_1 \lambda _2^2 = T_2\lambda _1^2\\\\

when the tension is decreased to 600 N, that is T₂ = 600 N

T_1 \lambda _2^2 = T_2\lambda _1^2\\\\\lambda _2^2  = \frac{T_2\lambda _1^2}{T_1} \\\\\lambda _2 = \sqrt{\frac{T_2\lambda _1^2}{T_1}} \\\\\lambda _2 = \sqrt{\frac{600* 0.391^2}{800}}\\\\\lambda _2  = \sqrt{0.11466} \\\\\lambda _2  =0.339 \ m\\\\\lambda _2  =33.9  \ cm

Therefore, the wavelength will be 33.9 cm

5 0
3 years ago
A body in uniform velocity has zero acceleration why?
NikAS [45]
When the velocity is uniform, the velocity does not change. since acceleration is the rate of change in velocity, the acceleration will be zero when velocity is uniform
6 0
4 years ago
Read 2 more answers
PLEASE HELP I WILL MARK BRAINLYIST!!!!!!!!!
snow_lady [41]

Answer:

The answer is D. Here is proof . Plz mark brainliest

Explanation:

5 0
3 years ago
Which of the following is not part of the role of a forester
snow_tiger [21]
Since you provide no options, here are some role of the foresters :

- they develop sustainable forest practice
- They asses timber Quality
- They make sure that all harvesting activities followed the law's regulation
- They plan and supervise forestry project

your answer might be the one that isn't included above
3 0
4 years ago
Read 2 more answers
Which of the following statements is not true of vibrations?
defon

Answer:

b

Explanation:

5 0
3 years ago
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