Answer:
1963.93 Moles
Explanation:
-We know the standard conversion ratio for the volume of a mole is
Given volume of rooms as ![13.0ft\times12.0ft\times10ft=1560 ft^3](https://tex.z-dn.net/?f=13.0ft%5Ctimes12.0ft%5Ctimes10ft%3D1560%20ft%5E3)
Convert the volume into liters:![1560\times28.2l=43992l](https://tex.z-dn.net/?f=1560%5Ctimes28.2l%3D43992l)
#From our conversion ratio above, we get the volume of air molecules in moles as:
![V_m=\frac{43992L}{22.4L}\times 1\ mole\\\\=1963.93\ Moles](https://tex.z-dn.net/?f=V_m%3D%5Cfrac%7B43992L%7D%7B22.4L%7D%5Ctimes%201%5C%20mole%5C%5C%5C%5C%3D1963.93%5C%20Moles)
Hence, the volume of air molecules is 1963.93 Moles
Answer:
Jesus is in everyone's heart...
Just try to find him..:D
Solution :
The motion in the y direction.
The time taken by the toy rocket to hit the ground,
![$S=ut+\frac{1}{2}at^2$](https://tex.z-dn.net/?f=%24S%3Dut%2B%5Cfrac%7B1%7D%7B2%7Dat%5E2%24)
S = distance travelled = 30 m
u = 0 m/s
a = ![$9.8 \ m/sec^2$](https://tex.z-dn.net/?f=%249.8%20%5C%20m%2Fsec%5E2%24)
t= time in seconds
Therefore, ![$30 =\frac{1}{2}9.8 t^2$](https://tex.z-dn.net/?f=%2430%20%3D%5Cfrac%7B1%7D%7B2%7D9.8%20t%5E2%24)
t = 2.47 sec
Now motion in the x direction,
u = 12 m/sec
![$a=1.6 t \ m/sec^3$](https://tex.z-dn.net/?f=%24a%3D1.6%20t%20%5C%20m%2Fsec%5E3%24)
Upon integration 'v' with respect to 't'
![$v=\frac{1.6t^2}{2}+12$](https://tex.z-dn.net/?f=%24v%3D%5Cfrac%7B1.6t%5E2%7D%7B2%7D%2B12%24)
Once again integrating with respect to t,
![$s=\frac{1.6t^3}{6}+12 t$](https://tex.z-dn.net/?f=%24s%3D%5Cfrac%7B1.6t%5E3%7D%7B6%7D%2B12%20t%24)
![$s=\frac{1.6(2.47)^3}{6}+12 (2.47)$](https://tex.z-dn.net/?f=%24s%3D%5Cfrac%7B1.6%282.47%29%5E3%7D%7B6%7D%2B12%20%282.47%29%24)
= 0.0176+29.64
= 29.65 m
Therefore, the toy rocket will hit the ground at 29.65 m from the building.
Again I think you did not give the right constants. So I would use the correct constants for mass of moon and distance from earth to moon.
<span>The formula for force of attraction between any two bodies in the universe
F = GMm / r^2. (Newton's Universal law of Gravitation).
G = Universal gravitational constant, G = 6.67 * 10 ^ -11 Nm^2 / kg^2.
M = Mass of Earth. = 5.97 x 10^24 kg.
m = mass of moon = 7.34 x 10^22 kg.
r = distance apart, between centers = in this case it is the distance from Earth to the Moon
= 3.8 x 10^8 m.
(Sorry I could not assume with the values you gave, they are wrong, and if we use them we would be insulting Physics).
So F = ((6.67 * 10 ^ -11)*(5.97 x 10^24)*(7.34 * 10^22)) / (3.8 x 10^8)^2.
Punch it all up in your calculator.
I used a Casio 991 calculator, it should be one of the best in the world.Really lovely calculator, that has helped me a lot in computations like this. I am thankful for the Calculator.
F = 2.0240 * 10^ 20 N.
So that's our answer.
Hurray!!</span>
Answer:
Water gets up to the Earth's atmosphere by evaporating from a body of water, which is then they become water vapor. It returns back to the surface by returning back to its water state and falling back down (as rain). The water vapor turns into clouds (clouds are really just water droplets), and when it cannot hold anymore waters, it disperses all the water (by raining).