Answer:
(i) 
rh
(ii) 
Explanation:
Given:
V = 
r²h
Where;
V = volume of a right circular cone.
r = radius of the cone
h = height of the cone.
(i) The rate of change of V with respect to r if r changes and h remains constant is 
, and is given by finding the differentiation of V with respect to r as follow:
= 
[r²h]
= rh --------------------(i)
(ii)
Given;
h = 2
r = 4
Substitute these values into equation (i) as follows;
= (4 x 2)
= (8)
=
=
Answer:
Output of plant=207.18 MW
Explanation:
Given input energy Q=450 MW
Brayton cycle efficiency
%
Rankine cycle efficiency 
%
Combined efficiency for two cycle given as follow
We know that efficiency 
out put of plant=
So output of plant=207.18 MW
Answer:
It is best to soak the new lifters in engine oil overnight in order to build a car engine from scratch, regardless of its length. Ensure all rings of the pistons are installed correctly. You should flip the block over and carefully install the top half of the main rod and bearing parts. Get the block out of your way and flip it over again. By flipping over the block, you’ll see the full effect. Ensure that the lifters are installed correctly.
Explanation:
Answer: 1766.667 Ω = 1.767kΩ
Explanation:
V=iR
where V is voltage in Volts (V), i is current in Amps (A), and R is resistance in Ohms(Ω).
3mA = 0.003 A
Rearranging the equation, we get
R=V/i
Now we are solving for resistance. Plug in 0.003 A and 5.3 V.
R = 5.3 / 0.003
= 1766.6667 Ω
= 1.7666667 kΩ
The 6s are repeating so round off to whichever value you need for exactness.
