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Orlov [11]
2 years ago
9

The graph represents velocity over time. What is the acceleration?

Physics
1 answer:
Semmy [17]2 years ago
7 0

Answer:

I think the answer is 0.2 m/s2

Explanation:

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In the desert air, sound travels at 358 meters per second (m/s). In the polar air, sound travels at 330 meters per
Sati [7]

Answer:

The correct option is;

C. The temperature of the air affects the speed of sound

Explanation:

The information given are;

The speed with which sound travels in the desert air = 358 m/s

The speed with which sound travels in the polar air = 330 m/s

The major difference between the desert air and the polar air is that the temperature of the desert air is hotter than the temperature of the air in the polar region. Therefore the speed of sound is affected by the air temperature.

The equation that gives the relationship of the speed of sound in air, v_{air}, to temperature is presented as follows;

v_{air} = 331\frac{m}{s} \times \sqrt{\dfrac{T_K}{273 K} } =  331\frac{m}{s} \times \sqrt{1 + \dfrac{T_{^{\circ}C}}{273 ^{\circ} C} }

Which shows that the speed of sound in air, v_{air}, rises as the temperature of the air rises.

Where;

T_{^{\circ}C} = The temperature of the air in degrees Celsius

T_K = The temperature of the air in degrees Kelvin.

7 0
3 years ago
How do i exist (serious question, i'm in the dark abyss of nothing please help)
Reptile [31]
The only evidence you have that you exist as a self-aware being is your conscious experience of thinking about your existence. Beyond that you're on your own. You cannot access anyone else's conscious thoughts, so you will never know if they are self-aware.
3 0
2 years ago
A heating curve is a graph that shows the temperature change of a substance as
harkovskaia [24]

Answer:

This statement is true, a heating curve is a graph that shows the temperature change of a substance as thermal energy is introduced.

4 0
2 years ago
Question 7
DedPeter [7]

AnswDIVID THEN SEMPFL THEN GRT 80.8

Explanation:

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3 years ago
What type of waves move energy forward, but the source moves up and down?
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Transverse waves is the answer.
Hope I helped if you need anything else ask me
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4 years ago
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