Answer:
The height of the cliff is 28.57 m.
Explanation:
Given;
initial velocity of the rock, u = 12.6 m/s
time of motion, t = 1.45 s
The height of the cliff is given by;
h = ut + ¹/₂gt²
h = (12.6 x 1.45) + ¹/₂(9.8)(1.45)²
h = 18.27 + 10.30
h = 28.57 m
Therefore, the height of the cliff is 28.57 m.
No chlorine will not react with potassium fluoride solution because chlorine reacts with water, forming HOCI and HCI. The only way for there to be a reaction when you add KF (Potassium Fluoride) to chlorine water is if there were any impurities in the water, even then it is doubtful that a color change would occur.
Answer:
Dont worry ,
One day you will find the love of your life
Explanation:
Answer:
S-glass
Explanation:
The "S" in the S-glass signify strength and it a high tensile strength fiberglass that offer improved mechanical properties and lower density than the regular traditional glass (E-glass), thus it is an important component for building and aircraft structures.
As we know that force F makes an angle of 60 degree with X axis
so the X component is given as
![cos60 = \frac{F_x}{F}](https://tex.z-dn.net/?f=cos60%20%3D%20%5Cfrac%7BF_x%7D%7BF%7D)
now we have
![F_x = F cos60](https://tex.z-dn.net/?f=F_x%20%3D%20F%20cos60)
![F_x = 0.50 F](https://tex.z-dn.net/?f=F_x%20%3D%200.50%20F)
Similarly we know that force F makes an angle of 45 degree with Y axis
so the X component is given as
![cos45 = \frac{F_y}{F}](https://tex.z-dn.net/?f=cos45%20%3D%20%5Cfrac%7BF_y%7D%7BF%7D)
now we have
![F_y = F cos45](https://tex.z-dn.net/?f=F_y%20%3D%20F%20cos45)
![F_y = 0.707 F](https://tex.z-dn.net/?f=F_y%20%3D%200.707%20F)
Now for the component along z axis we know that
![F_x^2 + F_y^2 + F_z^2 = F^2](https://tex.z-dn.net/?f=F_x%5E2%20%2B%20F_y%5E2%20%2B%20F_z%5E2%20%3D%20F%5E2)
now plug in all components
![(0.707 F)^2 + (0.50 F)^2 + F_z^2 = F^2](https://tex.z-dn.net/?f=%280.707%20F%29%5E2%20%2B%20%280.50%20F%29%5E2%20%2B%20F_z%5E2%20%3D%20F%5E2)
![0.5 F^2 + 0.25 F^2 + F_z^2 = F^2](https://tex.z-dn.net/?f=0.5%20F%5E2%20%2B%200.25%20F%5E2%20%2B%20F_z%5E2%20%3D%20F%5E2)
![F_z^2 = F^2(1 - 0.75)](https://tex.z-dn.net/?f=F_z%5E2%20%3D%20F%5E2%281%20-%200.75%29)
![F_z^2 = 0.25 F^2](https://tex.z-dn.net/?f=F_z%5E2%20%3D%200.25%20F%5E2)
![F_z = 0.5 F](https://tex.z-dn.net/?f=F_z%20%3D%200.5%20F)