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Tema [17]
1 year ago
3

How must the sea level air density in new orleans differ from the station directly north near the other surface high pressure ce

nter?
Physics
1 answer:
iVinArrow [24]1 year ago
5 0

Pressure is provided in mbar and the gas constant is in Jmol-1K-1. The above equation cannot be generalized because units cannot be converted.

Density=Pressure/gas constant* temperature. Since both examples have the same pressure (1018.6 mb), only the temperature varies. Temperature affects density. Lower temperatures increase density and vice versa. Since the station north of New Orleans has 66°F cooler air than New Orleans, its air density is higher.

This is further explained below.

<h3>How must the sea level air density in new Orleans differ from the station directly north near the other surface high-pressure center?</h3>

Since the gas constant is provided in Jmol-1K-1 and the pressure is given in mbar, the unit is different. The above equation cannot be generalized because the unit cannot be converted.

In conclusion, we are aware that density is equal to pressure times gas constant temperature. Since the only variable remaining is temperature, the pressure in both scenarios is the same (1018.6 mb).

The temperature will have an inverse relationship with density. The density will be greater at lower temperatures and vice versa. Since the station just north of New Orleans has a temperature that is 66 degrees Fahrenheit lower than the city's high pressure, it follows that the station's air density is higher than that of New Orleans.

Read more about pressure

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bija089 [108]

Cathode rays are negatively charged

Explanation:

Thomson's cathode ray beam bent towards the positively charged plate. With this information, he was able to conclude that the rays were negatively charged.

Cathode rays were discovered by J.J. Thomson based on his experiment on the gas discharge tube. He was able to discover some of the properties of the wave.

One notable one was that he observed that the rays deflected towards the positively charged plate.

Since unlike poles attract then he concluded that the cathode rays were negatively charged.

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6 0
4 years ago
Why are there warnings about using your cell phone while pumping gas?
kompoz [17]

There are warnings about using your cell phone while pumping gas because cell phone batteries can explode.

<h3>What is pumping gas?</h3>

When the vehicle is not having enough fuel to drive more miles, it needs to be fueled by petrol, diesel or natural gas. This is called pumping gas.

According to the rules of National Fire Protection Association, No one is allowed to use any type of electronic items while pumping gas. So, the cell phone is not allowed.

Phones develop static charge. It is believed that cell phone batteries can explode while pumping gas. It would be a real danger.

Thus, there are warnings about using your cell phone while pumping gas because cell phone batteries can explode.

Learn more about pumping gas.

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4 0
2 years ago
What is the mass of a sample of water that takes 2000 kJ of energy to boil into steam at 373 K? The latent heat of vaporization
GREYUIT [131]

Answer : The mass of a sample of water is, 888.89 grams

Explanation :

Latent heat of vaporization : It is defined as the amount of heat energy released or absorbed when the liquid converted to vapor at atmospheric pressure at its boiling point.

Formula used :

q=L\times m

where,

q = heat = 2000 kJ = 2\times 10^6J       (1 kJ = 1000 J)

L = latent heat of vaporization of water = 2.25\times 10^6J/kg

m = mass of sample of water = ?

Now put all the given values in the above formula, we get:

2\times 10^6J=(2.25\times 10^6J/kg)\times m

m=0.88889kg=888.89g       (1 kg = 1000 g)

Therefore, the mass of a sample of water is, 888.89 grams

3 0
4 years ago
On her camping trip, Penelope was in charge of collecting firewood. The firewood she found had a mass of 120 g and a volume of 4
zloy xaker [14]
From the formula: density=mass/volume
But first, we have to convert the cm³ to m³ by multiplying the value in cm³ by 10^-6, by so doing we'll have the volume to be 0.48*10^-3cm³.
we will also need to convert the mass which is in g to kg by simply dividing by 1000 so the mass becomes 0.12kg
Now we can solve for the density using the formula I earlier stated which is the mass divided by the volume =0.12/0.48*10^-3 so the density will be 0.25*10^3kgm-3 or 2.5*10^2kgm-3
3 0
3 years ago
HELP ASAP!! DUE TOMORROW!! FAN &amp; MEDAL!! PLEASE I DON'T UNDERSTAND THIS!! I CAN'T AFFORD TO GET AN F!! ANYTHING WOULD HELP M
USPshnik [31]
If the resulting compound feels hot, then it is exothermic. Otherwise, it is endothermic.

Catalysts and inhibitors both affect the reaction rate of a chemical reaction. A catalyst speeds up the rate of reaction, while an inhibitor does the opposite (slows down the reaction rate).
4 0
3 years ago
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