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Serga [27]
3 years ago
12

How does the Doppler effect cause a siren's pitch to increase as it

Physics
1 answer:
Dahasolnce [82]3 years ago
8 0

Answer:

my answer is c

Explanation:

the sound waves get closer together, increasing their frequency. This listener hears the pitch of the siren get higher. As the car speeds away from listener B, the sound waves get farther apart, decreasing their frequency.

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According to our theory of solar system formation, why do all the planets orbit the Sun in the same direction and in nearly the
11Alexandr11 [23.1K]

The laws of conservation of energy and conservation of angular momentum ensure that any rotating, collapsing cloud will end up as a spinning disk is the reason.

<h3>What is an Orbit?</h3>

This is defined as a curved path in space which is characterized by an object going round and round a planet, moon, or star.

In this scenario, all the planets orbit the Sun in the same direction and in nearly the same plane to ensure any rotating, collapsing cloud will end up as a spinning disk.

Read more about Orbit here brainly.com/question/3668699

4 0
3 years ago
You have 2 minutes to get to PE from science class before you get a tardy. If PE is 100m away and you walk at a speed of 1.1m/s
mart [117]

Answer:

D

Explanation:

4 0
3 years ago
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A 4-kg ball has a momentum of 12 kg∙m/s. what is the ball's speed?
Karolina [17]
M= 4kg
v= ?
momentum = Mv
so
12kgms-¹ = 4kg×v
v= 12÷4 = 3ms-¹
7 0
3 years ago
Read 2 more answers
The motion of spinning a hula hoop around one's hips can be modeled as a hoop rotating around an axis not through the center, bu
Citrus2011 [14]

Answer and Explanation:

Based on the given information, the formula and the computation is given below:

a. The rotational inertia of the hoop is shown below:

I_H = I_R + Mh^2

= MR^2 + Mh^2

= 0.73 \times (0.60^2 + 0.38^2)

= 0.73 × (0.36 +  0.1444)

= 0.368 kg\ mg^2

b. Now the rotational kinetic energy is

= Half \times Inertia \times omega^2

= 0.5 \times 0.368 \times 14.1^2

= 36.58 J

We simply applied the above formula for rotational inertia and rotational kinetic energy in order to reach with the correct answer

6 0
3 years ago
Which factor increases as a result of increasing altitude? Air pressure, air density, heights of sea level, space between gas mo
Anuta_ua [19.1K]

Answer:

heights of sea level and the space between gas molecules.

Explanation:

Asking that Which factor increases as a result of increasing altitude?

As the height above the sea increases, air density decreases because the molecule of the air will spread out causing air density to decrease. Also, there will be less air pressing down which will lead to a decrease in air pressure.

Therefore, the heights of sea level, and space between gas molecules are the factor that will increase as a result of increasing altitude. Not Air pressure and  air density. But the heights of sea level and the space between gas molecules.

5 0
3 years ago
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