A ócm diameter shaft rotates at 3000rpm in a 20cm long bearing with a uniform clearance of 0.2mm. At steady operating conditions, both the bearing and shaft in the vicinity of the oil gap are 50°C. The thermal conductivity and the viscosity of the lubricating oil are k=0.17 W/m-K and u= 0.05 N-s/m², respectively. By simplifying and solving the differential continuity, momentum and energy equation, determine the maximum temperature of oil. (Hint: Couette flow) 0.2mm shaft 3000rpm rpm oil bearing 20 cm

Q: What is Kinetic energy?

A: Kinetics energy is often studied in physics science and it is described as the kinetic energy of a…

Q: The car engine has a torque of 0.4 kNm at 2000 rpm (rev/min). What is the power (kW) at this time?

A: Given data: torque (T) = 0.4 kNm Speed (N) = 2000 rpm Need to determine the power.

Q: A seesaw that weights 45lbs and its 5m long is balanced on the fulcrum in the center.  1- Two…

A:

Q: Euler's first law of motion: allows the application of Newton's second law of motion to the rotation…

A: Euler’s First law is

Q: Why you put h= 19 instead of h=38 your answer for the exercise is incorrect can you please correct…

A:

Q: A solid cylinder is rolling down a ramp that is rough enough to cause the cylinder to roll without…

A: This question is solved with the help of the law of conservation of energy. Under pure rolling,  The…

Q: You can use a lever to increase force, distance, and speed.  True or false?   (simple machines:…

A: You can use a Class 1 or Class 3 lever to increase the speed of the load, according to where the…

Q: State the mathematical statement of second kepler's law.

A: Kepler give three set of laws which govern the motion of planet around the sun. The first law deals…

Q: Q1. Force F = {270i + 450j –140k} N and it passes point B. The coordinates of the points are: A (21,…

A: Given: The force acting, F = (270i+450j-140k) N The distance between O and B, OB = 21 cm The…

Q: 8. Three ships A, B, C are located as follows: A is 48 km due north of B and C is 125 km due east of…

A:

Q: Identify any zero force members

A:

Q: I what direction is the force acting on the shaft associated with rotation of mass imbalance for…

A: Given:The shaft has mass imbalance which is rotated for a constant speed in rotation.

Q: Which allows you to throw the ball the farthest?  Why? which out of the three only pick one  wrist,…

A: To chose: The correct option.

Q: torque (or moment) is defined as a force acting perpendicular to a moment arm about a moment center…

A: Given data T=360 lb.in

Q: James checks the pressure on his front left tire, and it reads 25 pound per square inch (psi). His…

A: The pressure required to add.Given:The current pressure is .The required pressure is .

Q: Consider the bar/roller assembly shown in the figure below. The roller and surface at point A are…

A: A free body diagram is defined as a diagrammatic representation of all the forces acting in a…

Q: You can use a lever to increase force, distance, and speed.  True or Flase  (answer only)

A: A lever is a simple machine that helps us to use energy differently or in a useful way. It is a…

Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.