Answer:
rafter is a structural component that is used as part of a roof construction. There are also different types of rafters
Given:
diameter of sphere, d = 6 inches
radius of sphere, r =
= 3 inches
density,
= 493 lbm/ ![ft^{3}](https://tex.z-dn.net/?f=ft%5E%7B3%7D)
S.G = 1.0027
g = 9.8 m/
= 386.22 inch/ ![s^{2}](https://tex.z-dn.net/?f=s%5E%7B2%7D)
Solution:
Using the formula for terminal velocity,
=
(1)
![(Since, m = V\times \rho)](https://tex.z-dn.net/?f=%28Since%2C%20m%20%3D%20V%5Ctimes%20%5Crho%29)
where,
V = volume of sphere
= drag coefficient
Now,
Surface area of sphere, A = ![4\pi r^{2}](https://tex.z-dn.net/?f=4%5Cpi%20r%5E%7B2%7D)
Volume of sphere, V = ![\frac{4}{3} \pi r^{3}](https://tex.z-dn.net/?f=%5Cfrac%7B4%7D%7B3%7D%20%5Cpi%20r%5E%7B3%7D)
Using the above formulae in eqn (1):
= ![\sqrt{\frac{2\times \frac{4}{3} \pir^{3}\rho g}{4\pi r^{2} \rho C_{d}}}](https://tex.z-dn.net/?f=%5Csqrt%7B%5Cfrac%7B2%5Ctimes%20%5Cfrac%7B4%7D%7B3%7D%20%5Cpir%5E%7B3%7D%5Crho%20%20g%7D%7B4%5Cpi%20r%5E%7B2%7D%20%5Crho%20C_%7Bd%7D%7D%7D)
=
= ![\sqrt{\frac{2\times 386.22\times 3}{3C_{d}}}](https://tex.z-dn.net/?f=%5Csqrt%7B%5Cfrac%7B2%5Ctimes%20386.22%5Ctimes%203%7D%7B3C_%7Bd%7D%7D%7D)
Therefore, terminal velcity is given by:
=
inch/sec
Answer:
Some examples of predator and prey are lion and zebra, bear and fish, and fox and rabbit. ... The words "predator" and "prey" are almost always used to mean only animals that eat animals, but the same concept also applies to plants: Bear and berry, rabbit and lettuce, grasshopper and leaf
Explanation:
Lick the bullet and push it down
Parallel Resistor Equation
If the two resistances or impedances in parallel are equal and of the same value, then the total or equivalent resistance, RT is equal to half the value of one resistor. That is equal to R/2 and for three equal resistors in parallel, R/3, etc.