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musickatia [10]
3 years ago
13

Please help me out with these !! 50 points would greatly appreciate it.

Physics
2 answers:
marysya [2.9K]3 years ago
6 0

Answer:

oh thank you for the free points :D

Explanation:

HACTEHA [7]3 years ago
6 0

Answer:

Its nymber 2

Explanation:

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What type of energy transformation is demonstrated in the above diagram?
Svetach [21]

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C :)

Explanation:

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3 years ago
What is the net force on a car moving in a straight line with a constant velocity
guapka [62]

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For example, when a car travels at a constant speed, the driving force from the engine is balanced by resistive forces such as air resistance and friction in the car's moving parts. The resultant force on the car is zero.

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2 years ago
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What is sin(77)?<br> Α. 0.77<br> Β. 4.33<br> Ο Ο Ο<br> C. 0.22<br> Ο D. 0.97
Vilka [71]

Answer:

0.97 id the correct answer

Explanation:

3 0
2 years ago
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A complex sound’s quality depends on the mix of harmonics or overtones added to the ______________ frequency
Brilliant_brown [7]
Fundamental frequency is the "base frequency" upon which the sound is built.
4 0
3 years ago
You have a stopped pipe of adjustable length close to a taut 62.0-cm, 7.25-g wire under a tension of 3910 N . You want to adjust
Ber [7]

Answer:

L = 6 cm

Explanation:

Second overtone of the wire is same as third harmonic

so its frequency is given as

f = \frac{3}{2L}\sqrt{\frac{T}{\mu}}

here we know that

\mu = \frac{M}{L}

\mu = \frac{7.25 \times 10^{-3}}{0.62}

\mu = 0.0117 kg/m

now we have

f = \frac{3}{2\times 0.62}\sqrt{\frac{3910}{0.0117}}

f = 1398.6 Hz

Now fundamental frequency of sound in a pipe is given as

f = \frac{v}{4L}

1398.6 = \frac{340}{4L}

L = 0.06 m

L = 6 cm

7 0
3 years ago
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