Actual reason it is where it is strange as it will seem it is because Great Britain is an island. when Earth was being explored in 16 and 1700s British figured out that it would be very helpful to know WHERE YOU ARE at all times, and they hadn't quite figured out how to launch a GPS satellite system just yet
Fusion needs to force molecule together
they also need to move fast enough to colide (tempureature) there is a minimum tempurature of 18,000,000 F or 9999982.2222 celcius or
I would say pressure and tempurature, but I would choose pressure because this extremem pressure could make the requiared tempureature
Answer:
Doppler radar is very useful for determining the presence of a tornado.
Explanation:
Doppler radar is the special type of radar that uses the principal of Doppler effect to find velocity about the object at any distance. It can be used for many purpose like radar gun, aviation, on air weather etc.
Thus, It can also determine the presence of tornado.
Answer:
Part a)
F = 0.735 N
Part b)
![percentage = 67.9%](https://tex.z-dn.net/?f=percentage%20%3D%2067.9%25)
Explanation:
As we know that mass of the cube is given as
![M = \rho V](https://tex.z-dn.net/?f=M%20%3D%20%5Crho%20V)
![M = \rho a^3](https://tex.z-dn.net/?f=M%20%3D%20%5Crho%20a%5E3)
![M = (678.2) (4.8 \times 10^{-2})^3](https://tex.z-dn.net/?f=M%20%3D%20%28678.2%29%20%284.8%20%5Ctimes%2010%5E%7B-2%7D%29%5E3)
![M = 0.075 kg](https://tex.z-dn.net/?f=M%20%3D%200.075%20kg)
Now we know that cube is floating in the water
So net force due to weight of the cube must be counter balanced by buoyancy force on the liquid
so we have
![F_b = mg](https://tex.z-dn.net/?f=F_b%20%3D%20mg)
![F_b = 0.075 \times 9.81](https://tex.z-dn.net/?f=F_b%20%3D%200.075%20%5Ctimes%209.81)
![F_b = 0.735 N](https://tex.z-dn.net/?f=F_b%20%3D%200.735%20N)
Part b)
Percentage of volume submerged into the liquid is given as
![F_b = \rho V g](https://tex.z-dn.net/?f=F_b%20%3D%20%5Crho%20V%20g)
![0.735 = 1000 V \times 9.8](https://tex.z-dn.net/?f=0.735%20%3D%201000%20V%20%5Ctimes%209.8)
![V = 7.71 \times 10^{-5} m^3](https://tex.z-dn.net/?f=V%20%3D%207.71%20%5Ctimes%2010%5E%7B-5%7D%20m%5E3)
now percentage of submerged liquid is given as
![percentage = \frac{7.71 \times 10^{-5}}{(4.8 \times 10^{-2})^3}\times 100](https://tex.z-dn.net/?f=percentage%20%3D%20%5Cfrac%7B7.71%20%5Ctimes%2010%5E%7B-5%7D%7D%7B%284.8%20%5Ctimes%2010%5E%7B-2%7D%29%5E3%7D%5Ctimes%20100)
![percentage = 67.9%](https://tex.z-dn.net/?f=percentage%20%3D%2067.9%25)