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solniwko [45]
4 years ago
8

As you sit outside, the sound of a siren becomes lower in pitch. Is the emergency vehicle moving away from or towards you? expla

in how you know
Physics
1 answer:
Dominik [7]4 years ago
4 0
The sound you hear as the siren gets closer will increase in pitch and that will decrease as it moves away from you.

Explanation:
Sound is a longitudinal pressure wave. As the ambulance moves closer to you, the air molecules get compressed together. The wavelength of the sound (these pressure waves) decreases, and the frequency increases. That results in a higher sound pitch.
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Sodium = Na
ad-work [718]
Boron - B
Explanation
6 0
4 years ago
Read 2 more answers
On a hot day, the deck of a small ship reaches a temperature of 48
AlekseyPX

The final temperature of the seawater-deck system is 990°C.

<h3>What is heat?</h3>

The increment in temperature adds up the thermal energy into the object. This energy is Heat energy.

The deck of a small ship reaches a temperature Ti= 48.17°C seawater on the deck to cool it down. During the cooling, heat Q =3,710,000 J are transferred to the seawater from the deck. Specific heat of seawater= 3,930 J/kg°C.

Suppose for 1 kg of sea water, the heat transferred from the system is given by

3,710,000 = 1 x 3,930 x (T - 48.17)

T = 990°C  to the nearest tenth.

The final temperature of the seawater-deck system is 990°C.

Learn more about heat.

brainly.com/question/13860901

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6 0
2 years ago
Newton is said to have been inspired by what to describe the theory of gravity?
maw [93]

Answer:

an apple that fell down from a tree

Explanation:

he wondered what force was acting as the apple fell , he later termed it as a downward force acting on the earth called <em>gravity</em>.

6 0
3 years ago
Suppose you push a toy train with a force of 3 N east. The train has a mass of 0.5 kg. What is its acceleration?
Sergeu [11.5K]
The answer u are looking for is not a b or d it is c <span />
8 0
4 years ago
Ask Your Teacher A circular wire loop whose radius is 10.0 cm carries a current of 3.60 A. It is placed so that the normal to it
e-lub [12.9K]

Answer:

M=0.113\ Am^2

Explanation:

Given that,

Radius of the circular loop, r = 10 cm = 0.1 m

Current flowing in the loop, I = 3.6 A

Uniform magnetic field, B = 12 T

To find,

The magnetic dipole moment of the loop.

Solution,

Let M is the magnitude of magnetic dipole moment of the loop. We know that the product of current flowing and the area of cross section. Its formula is given by :

M=I\times A

A is the area of circular wire

M=I\times \pi r^2

M=3.6\ A \times \pi (0.1\ m)^2

M=0.113\ Am^2

Therefore, the magnetic dipole moment of the loop is 0.113\ Am^2. Hence, this is the required solution.

7 0
3 years ago
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