V = 3.0 x 10⁸ m/s (This is the same for all types of electromagnetic waves)
f = 88.6 MHz = 8.86 x 10⁷ Hz
λ = ?
V = fλ
λ = V/f = (3 x 10⁸)/(8.86 x 10⁷)
= 3.4 m [Ans]
Hope this helps!
The human beings use 10 % of the brain and the remaining 90 percent is full of unused potential and undiscovered abilities.
Explanation:
It is stated that every human beings use 10 percent of their brain and the other 90 percent is used only for operating a limited stretch. the average adult human brain can store the 2.5 million gigabytes digital memory.
The human brains contains about 100 billion neurons and around i quadrillion to 1 million connections in the cells. The dendrites provide more information than passive wiring.
The unused part of the brain is not necessary it simply occupies the space. The damaged parts of the brain should be removed.
Answer:
the correct answer is
D.Remaining well-hydrated while exercising is best
Answer:
x2 = 0.99
Explanation:
from superheated water table
at pressure p1 = 0.6MPa and
temperature 200 degree celcius
h1 = 2850.6 kJ/kg
From energy equation we have following relation
![(h1 + \frac{v1^2}{2} = (h2 + \frac{v2^2}{2}[tex]2850.6 + \frac{50^2}{2} *\frac{1 kJ/kg}{1000 m^2/s^2} = h2 + \frac{600^2}{2} *\frac{1 kJ/kg}{1000 m^2/s^2}](https://tex.z-dn.net/?f=%28h1%20%2B%20%5Cfrac%7Bv1%5E2%7D%7B2%7D%20%3D%20%28h2%20%2B%20%5Cfrac%7Bv2%5E2%7D%7B2%7D%3C%2Fp%3E%3Cp%3E%3C%2Fp%3E%3Cp%3E%5Btex%5D2850.6%20%2B%20%5Cfrac%7B50%5E2%7D%7B2%7D%20%2A%5Cfrac%7B1%20kJ%2Fkg%7D%7B1000%20m%5E2%2Fs%5E2%7D%20%3D%20h2%20%2B%20%5Cfrac%7B600%5E2%7D%7B2%7D%20%2A%5Cfrac%7B1%20kJ%2Fkg%7D%7B1000%20m%5E2%2Fs%5E2%7D)
h2 = 2671.85 kJ/kg
from superheated water table
at pressure p2 = 0.15MPa
specific enthalpy of fluid hf = 467.13 kJ/kg
enthalpy change hfg = 2226.0 kJ/kg
specific enthalpy of the saturated gas hg = 2693.1 kJ/kg
as it can be seen from above value hf>h2>hg, so phase 2 is two phase region. so we have
quality of steam x2
h2 = hf + x2(hfg)
2671.85 = 467.13 +x2*2226.0
x2 = 0.99
