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Aleks [24]
3 years ago
9

At which dew point temperature would the amount of water vapor in the air be greatest

Physics
1 answer:
Mariana [72]3 years ago
3 0
Dew point indicates the amount of moisture in the air. The higher the dew points, the higher the moisture content of the air at a given temperature. The temperature in which water vapor would be at  20 degrees Celsius or 68 degrees Fahrenheit. The Relative humidity is defined as the ratio of the partial pressure of water vapor to the saturated vapor pressure at a given temperature

Relative Humidity = partial pressure of H₂0/saturated vapor pressure of H₂0  Multiply by 100%

Example at 20⁰C = 17.5 torr

That would mean 120% Humidity
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Burning a log of wood is an example of a chemical change
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3 years ago
If a cup of coffee is at 90°C and a person with a body temperature of 36°C touches it, how will heat flow between them?
Savatey [412]

Answer:

According to II law of thermodynamics the heat always transfers from high temperature to low temperature body without aid of any external energy. So, according to this law the heat transfers from cup of coffee to the person body until both bodies reaches to the equilibrium state.

After attaining the equilibrium state, the heat transfer may be ceases between the bodies.

Whenever the person touches the hot coffee, he senses the heat that means the heat is transferring in to his body.

7 0
4 years ago
Read 2 more answers
Identify the forces acting on the object of interest. From the list below, select the forces that act on the piano.
Nonamiya [84]

Answer:

gravitational force acting on the piano (piano's weight)

force of Chadwick on the piano

force of the floor on the piano (normal force)

Explanation:

Figure is missing: found it in attachment.

In the figure, we notice that the piano is accelerating along the horizontal direction: this means that there is a net force acting along this direction. This force is prodiced by Chadwick, and it acts in the same direction as the acceleration, so one force is:

force of Chadwick on the piano

Also, every object on Earth experencies the force of gravity, which is also called weight. The weight of the piano acts downward, so a second force is:

gravitational force acting on the piano (piano's weight)

Finally, we notice that the piano is in equilibrium along the vertical direction (no acceleration): this is because there is another force acting opposite to the piano's weight (and with equal magnitude), and this force is the normal force exerted by the floor on the piano:

force of the floor on the piano (normal force)

3 0
3 years ago
Một xe ô tô chuyển động từ A đến B rồi về C khi từ A đến B xe chuyển động với tốc độ trung bình 50km/h, khoảng cách AB bằng 90km
Naddik [55]

Answer:

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4 0
3 years ago
Light travels at 300,000 km per second. Mars is 56 million km away from Earth. How many seconds does it take light to travel fro
alina1380 [7]

Answer:

<em> It takes 186.67 second for the light to travel from Mars to earth.</em>

Explanation:

Light: Light is a visible form of energy which is radiated outward from a source. Light travels in a straight line, and this phenomenon is called rectilinear propagation of light.

S = d/t .......................... Equation 1

making t the subject of the equation

t = d/S ......................... Equation 2

Where S = speed of light, d = distance between the earth and Mars, t = time

<em>Given: d = 56000000 km, S = 300000 km per seconds.</em>

<em>Substituting these values into equation 2</em>

<em>t = 56000000/300000</em>

<em>t = 186.67 seconds.</em>

<em>Thus it takes 186.67 second for the light to travel from Mars to earth.</em>

4 0
3 years ago
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