Answer:
The surface temperature of the component 54.6 degrees celsius.
Explanation:
Please see attachment.
Answer:
The heat absorbed portion that is transformed into work is therefore helpful and accessible for our use, hence it is termed as available energy. But the energy or heat which is of no use is termed as unavailable energy.
Explanation:
A engine requires heat from the reservoir and transforms portion of it into function. The extra heat is expelled (generally atmosphere) to cold reservoir. The refused heat can't be equal to zero, as per the 2nd law of thermodynamics. The heat absorbed portion that is transformed into work is therefore helpful and accessible for our use, hence it is termed as available energy. But the energy or heat which is of no use is termed as unavailable energy.
Answer:
F=989.6 N
Explanation:
Given that
Diameter of shaft = 70 mm
Diameter of bearing sleeve =70.2 mm
So clearance h=0.1 mm
Speed V= 400 mm/s
Length of shaft = 250 mm

We know that

μ= 900 x 0.005 Pa-s
μ= 4.5 Pa-s
As we know that
From Newton's law of viscosity ,the shear stress given as follows

We also know that
Force = shear stress x area
Now by putting the values


So force
F= 18,000 x π x 0.07 x 0.25
F=988.6 N
Answer:
Starting current
Explanation:
The motor branch circuit short circuit and ground-fault protective device shall be capable of carrying the <u>Starting current</u> of the motor.