Answer:
Explanation:
Following are a few consequences of fossil fuels
1. It causes air pollution.
2. When they are burned, they produce toxic substances which leads to global warming.
3. Waste products are hazardous to public health and environment.
4. They are non - renewable and unsustainable.
5. Drilling fossil fuels is a dangerous process
Hope this helps
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It is really easy if you look up an electron configuration table (one that looks like a periodic table) and then just go down the rows left to right, top to bottom, and just stop when you get to where the element is on the table.
Kinetic energy=Ek
Ek=(1/2)mv²
Ek=480 J
v=8 m/s
mass=?
Ek=(1/2)mv²
480 J=(1/2)m(8 m/s)²
480 J=(32 m²/s²) m
m=(480 J)/(32 m²/s²)=15 kg
answer: the mass of the object is 15 kilograms.
Answer:
The pressure contribution from the heavy particles is 17.5 atm
Explanation:
According to Dalton's law of partial pressures, if there is a mixture of gases which do not react chemically together, then the total pressure exerted by the mixture is the sum of the partial pressures of the individual gases that make up the mixture.
In the simulation:
the pressure of the 50 light particles alone was determined to be 5.9 atm, the pressure of the 150 heavy particles alone was measured to be 17.5 atm,
the total pressure of the mixture of 150 heavy and 50 light particles was measured to be 23.4 atm
Total pressure = partial pressure of Heavy particles + partial pressure of light particles
23.4 atm = partial pressure of Heavy particles + 5.9 atm
Partial pressure of Heavy particles = (23.4 - 5.9) atm
Partial pressure of Heavy particles = 17.5 atm
Therefore, the pressure contribution from the heavy particles is 17.5 atm
Explanation:
It is given that, the Average Speed of the orbiting space shuttle is 17500 miles/hour.
We need to convert the speed in kilometers/
second
We know that,
1 mile = 1.609 km
or
1 km = 0.621 miles
1 hour = 3600 seconds
![17500\ \dfrac{\text{miles}}{\text{hour}}=17500\ \dfrac{\text{miles}}{\text{h}}\times \dfrac{1\ h}{3600\ s}\\\\=17500\times \dfrac{\text{miles}}{3600\ s}](https://tex.z-dn.net/?f=17500%5C%20%5Cdfrac%7B%5Ctext%7Bmiles%7D%7D%7B%5Ctext%7Bhour%7D%7D%3D17500%5C%20%5Cdfrac%7B%5Ctext%7Bmiles%7D%7D%7B%5Ctext%7Bh%7D%7D%5Ctimes%20%5Cdfrac%7B1%5C%20h%7D%7B3600%5C%20s%7D%5C%5C%5C%5C%3D17500%5Ctimes%20%5Cdfrac%7B%5Ctext%7Bmiles%7D%7D%7B3600%5C%20s%7D)
Now cancel the miles in numerator.
![17500\times \dfrac{\text{miles}}{3600\ s}=17500\times \dfrac{\text{miles}}{3600\ s}\times \dfrac{1.609\ km}{1\ \text{miles}}\\\\=17500\times \dfrac{1.609}{3600}\ km/s\\\\=7.82\ km/s](https://tex.z-dn.net/?f=17500%5Ctimes%20%5Cdfrac%7B%5Ctext%7Bmiles%7D%7D%7B3600%5C%20s%7D%3D17500%5Ctimes%20%5Cdfrac%7B%5Ctext%7Bmiles%7D%7D%7B3600%5C%20s%7D%5Ctimes%20%5Cdfrac%7B1.609%5C%20km%7D%7B1%5C%20%5Ctext%7Bmiles%7D%7D%5C%5C%5C%5C%3D17500%5Ctimes%20%5Cdfrac%7B1.609%7D%7B3600%7D%5C%20km%2Fs%5C%5C%5C%5C%3D7.82%5C%20km%2Fs)
So, 17500 miles/hour is equal to 7.82 km/s.