Answer:
You need 5 bits to encode al the 24 greek distinct lowercase letters.
Explanation:
o encode 24 greek distinct lowercase letters, you should be able to write in binary language 24 different combinations.
With 1 bit you have only 2 possible combinations. Not enough.
With 2 bit you have only 4 possible combinations. Not enough.
With 3 and 4 bit you have only 8 and 16 possible combinations. Not enough.
With 5 bit you have 32 possible combinations. This is enough to encode all the 24 Greek letters.
Answer:
a) 1725.93 rpm
b) α = 3.012 rad/s²
Explanation:
The centrifugal acceleration is given by
a = v²/r
a = 1000 g = 1000 × 9.8 = 9800 m/s²
v = velocity = ?
r = radius of motion = 300 mm = 0.3 m
9800 = v²/0.3
v² = 2940
v = 54.22 m/s
v = rw
w = angular speed
54.22 = 0.3 × w
w = 54.22/0.3 = 180.74 rad/s
w = 2πf
f = frequency in rev/s
180.74 = 2πf
f = 28.77 rev/s
f = 1725.93 rpm
b) Using the equations of motion,
Since the centrifuge starts from rest,
w₀ = 0 rad/s
w = 180.74 rad/s (equivalent to the f = 1725.93 rpm)
t = 1 min = 60 s
α = ?
w = w₀ + αt
180.74 = 0 + 60α
α = 3.012 rad/s²
Answer:
D. Fire clay bricks
Explanation:
Just like in the steel mills with the big furnaces that's what causes all the smoke to come out of the stacks
Answer: Temperature T = 218.399K.
Explanation:
Q= 129W/m2
σ = 5.67 EXP -8W/m2K4
Q= σ x t^4
t = (Q/σ)^0.25
t= 218.399k