When there is heat released
Answer:
2016 km
Explanation:
The escape velocity from Earth's surface is 
.
We need to find how many kilometers would a rocket travel in three minutes. It is a concept based on the definition of speed of an object.
Speed = distance per unit time
1 hour = 60 minutes
⇒ 3 minutes = 0.05 hour
1 m/s = 3.6 km/h
11200 m/s = 40320 km/h
So,
Hence, a rocket will travel 2016 km in 3 minutes.
Answer:
308,4796 g.
Explanation:
1 mol equals to 107,86 g, now times 2,86 mol, 308,4796 g.
Answer:
That means that the isotope that has a mass number of 28 is probably the most abundant. This is because your average atomic mass is 28.086 amu, which is closest to 28.
Formula used to calculate average atomic mass follows:
average atomic mass=(atomic mass of an isotope)*(fractional abundance)
we are given=
Three isotopes of Silicon, which are Si-28, Si-29 and Si-30.
Average atomic mass of silicon = 28.086 amu
As, the average atomic mass of silicon is closer to the mass of Si-28 isotope. This means that the relative abundance of this isotope is the highest as compared to the other two isotopes.
Percentage abundance of Si-28 isotope = 92.2%
Percentage abundance of Si-29 isotope = 4.7 %
Percentage abundance of Si-30 isotope = 3.1%
Hence, the abundance of Si-28 isotope is the highest as compared to the other isotopes.
This is because the bridge is completely surrounded by cold air in the winter and by hot air in the summer. It is not insulated by the ground beneath it.
