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3 years ago

Which moves more: the air molecules or the energy of the sound?

Physics

1 answer:

MatroZZZ [7]3 years ago

7 0

Answer:

A sound wave can be affected by a lot of different variables. As an audio engineer some of the more common things we deal with involve air temperature, humidity and even wind. The first two affect the speed at which the wave travels, while wind can actually cause a phase like effect if it is blowing hard enough. Another big one though not directly related to the air is walls and other solid objects that cause the sound wave to bounce off of them and reflect. This causes a secondary wave that isn’t as strong as the first wave but is the cause of “muddy” sounding venues when you are indoors.

Explanation:

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What is the maximum speed with which a 1200-kg car can round a turn of radius 88.0 m on a flat road if the coefficient of static

boyakko [2]

Answer:

18.6 m/s

Explanation:

The frictional force acting on the car is given by:

$F_f = \mu m g=(0.40 )(1200 kg)(9.81 m/s^2)=4709 N$

But the frictional force also corresponds to the centripetal force that keeps the car in circular motion in the turn:

$F_f = F_c = m \frac{v^2}{r}$

Where v is the maximum speed the car can achieve remaining in the turn. Substituting r=88.0 m and re-arranging the formula, we can find the value of v:

$v=\sqrt{\frac{Fr}{m}}=\sqrt{\frac{(4709 N)(88.0 m)}{1200 kg}}=18.6 m/s$

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3 years ago

The Hoover dam is a hydroelectric power plant that converts the energy of falling water into electricity. Which of the following

vlabodo [156]

The correct answer to the question is : B) The weight of the water, and C) The height of the water.

EXPLANATION :

Before coming into any conclusion, first we have to understand potential energy of a body.

The potential energy of a body due to its position from ground is known as gravitational potential energy.

The gravitational potential energy is calculated as -

Potential energy P.E = mgh

Here, m is the mass of the body, and g is the acceleration due to gravity.

h stands for the height of the body from the ground.

We know that weight of a body is equal to the product of mass with acceleration due to gravity.

Hence, weight W = mg

Hence, potential energy is written as P.E = weight × height.

Hence, potential energy depends on the weight and height of the water.

3 0

4 years ago

Read 2 more answers

Please answer. Thanks

Brilliant_brown [7]

I believe #1. is the answer " Mitosis and specialization", because all the information needed for growth, development, and reproduction is present in a Zygote

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3 years ago

A solution has a pH of 8. Which best describes the solution?

harkovskaia [24]

Answer:

Explanation:

a weak base is the answer

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3 years ago

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Ymorist [56]