Superposition of two wave crests produces

Answers

Answer 1

Answer: Superposition of two wave crests produces addtion (increase) of the crests.

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C=ne 0.045=n *1.6*10^-19

Older auto-focus cameras sent out a pulse of sound and measured the time interval required for the pulse to reach an object, reflect off of it, and return to be detected. Can air temperature affect the camera's focus? New cameras use a more reliable infrared system.

Answers

Temperature is also a condition that affects the speed ofsound. Heat, like sound, is a form of kinetic energy. Molecules at higher temperatures have more energy, thus they can vibrate faster. Since the molecules vibrate faster, sound waves can travel more quickly. so the higher the air temperature the faster it will focus.

Answer:

ITS C!!

Explanation:I PROMISE!!

I GOT IT CORRECT!!!

JUST DO IT!!

In a stringed musical instrument, the sound frequency of a particular string can be increased by A. tightening the string.
B. increasing the string's thickness.
C. loosening the string.
D. lengthening the string.

Answers

The answer is A: tightening the string. By doing this, the string will become slightly shorter. A shorter string, when plucked or bowed, will produce a higher pitch. The other answers will have different results. Increasing the thickness, loosening the string, and lengthening the string will all cause the pitch to lower.

In a stringed musical instrument, the sound frequency of a particular string can be increased by tightening the string (option A).

What happens to the frequency of a vibrating string

The frequency of a vibrating string determines the pitch of the sound it produces. Higher frequencies result in higher-pitched sounds, while lower frequencies produce lower-pitched sounds.

By tightening the string, the tension in the string increases. This increased tension leads to an increase in the frequency of vibration of the string when plucked, bowed, or struck. As a result, the pitch of the sound produced by the string becomes higher. Option A is therefore correct.

Read more on stringed musical instrument here brainly.com/question/30271564

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Explain the law of conservation of energy.

Answers

Energy cannot be created or lost, but only changes form.

Answer:

Energy cant be created or lost, it only changes form.

Explanation:

The answer above is correct.

Why do sound waves move faster through the ground than through the air?Particles of matter are packed more loosely in the ground than in the air.

Particles of matter are packed more tightly in the ground than in the air.

Air doesn’t contain any particles of matter to transmit sound waves.

The elevation of the ground is lower than the elevation of the air space.

Answers

Answer:

Particles of matter are packed more tightly in the ground than in the air.

Explanation:

As we know that velocity of sound in a given medium is given by formula

$v = \sqrt{(E)/(\rho)}$

here we know that

E = elasticity of the medium

$\rho$ = density of the medium

now we know that if we increase the density of medium then particles of matter are packed more which will decrease the speed of wave.

while is particles are tightly packed then it will increase the elasticity of the medium

So here if all particles are tightly bounded with each other then sound waves will move faster through the medium

Particles of matter are packed more tightly in the ground than the air

Which of the following accurately describes junction diodes? A. In a forward-biased setup, large numbers of charge carriers will be pulled across the junction and result in a large current.
B. Free electrons are concentrated in the P-type material and holes form in the N-type material.
C. The negative terminal of the source of voltage is connected to the N-type material within a reverse-biased setup.
D. Only a small current will flow through the diode in the forward-biased setup.

Answers

The correct answer for the question that is being presented above is this one: "C. The negative terminal of the source of voltage is connected to the N-type material within a reverse-biased setup." the statement that accurately describes junction diodes is that the negative terminal of the source of voltage is connected to the N-type material within a reverse-biased setup.

A bicyclist travels the first 700 m of a trip at an average speed of 8 m/s, travelsthe next 600 m in 90 s and the last 50s at a speed of 21 m/s. Find the average speed
of the bicyclist for this trip

Answers

Answer:

500

Explanation: its 500 because you can also just search for it

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