Answer:
A matrix is a convenient and useful way of representing a graph to a computer. ... Matrices lend themselves easily to mechanical manipulations. Besides, many known results of matrix algebra can be readily applied to study the structural properties of graphs from an algebraic point of view.
Answer:
<em>Heat rejected to cold body = 3.81 kJ</em>
Explanation:
Temperature of hot thermal reservoir Th = 1600 K
Temperature of cold thermal reservoir Tc = 400 K
<em>efficiency of the Carnot's engine = 1 - </em>
<em> </em>
eff. of the Carnot's engine = 1 - 
eff = 1 - 0.25 = 0.75
<em>efficiency of the heat engine = 70% of 0.75 = 0.525</em>
work done by heat engine = 2 kJ
<em>eff. of heat engine is gotten as = W/Q</em>
where W = work done by heat engine
Q = heat rejected by heat engine to lower temperature reservoir
from the equation, we can derive that
heat rejected Q = W/eff = 2/0.525 = <em>3.81 kJ</em>
A duo-servo break makes use of mechanical arrangements to multiply the braking force
The technician that gives the correct procedure of reassembly of duo-servo brake is Tech B, therefore;
Tech B only is correct
The process by which the above answer is arrived at
To reassemble a duo-servo brake, the first step is to reassemble on the brake shoe and parking brake cable, the parking brake lever. The star wheel assembly is then reassembled, and set aside after lubricating the floating end. The pads on the backing plate are lubricated and both brake shoes are then installed on the backing plate
Therefore, Tech A states that the brake shoes on the backing plate are reassembled first is not correct, while Tech B is correct
Learn more about duo-servo brake here:
brainly.com/question/13439898
Answer:
The answer is true.
Explanation:
Most of it is done in computer, but it can also be drawn out by hand.
