Air, at p = 1 atm and a temperature of 60 ° C enters a thin-walled (d = 5.0 mm) and long (l = 3 m) tube. A constant thermal flow is applied to the air from the tube walls. The mass air flow is 1.5x10^(-04) kg / s. If the temperature on the surface of the tube at its outlet is 120 ° C, determine the rate of heat transfer entering the tube. Use the air properties for 400 K.

Air, with density of 0.00237 slug/ft³ and a kinematic viscosity of 0.000157 ft²/s, is forced through a horizontal square 9-by 9-in duct 100 ft long at 25 ft³/s. Find the pressure drop if the relative roughness is 0.0003 ft.

Select one:

a.
5.5 lbf/ft²

b. 1.5 lbf/ft²

c. 40 lbf/ft²

d. 15 lbf/ft²

1. Discuss using several examples how the type of bonding and/or intermolecular forces present in each of the three main classes of materials (metals, ceramics, plastics) give rise to the desirable properties (such as strength, impact resistance, hardness, cost, ease of manufacture, ductility, malleability, melt processing, etc.) that justify why a particular material is chosen for a given application in car manufacturing.

Principle of Conservation Energy is always being applied to solve engineering mechanic analysis. Explain what is Principle of Conservation Energy and when it is suitable to use this principle. Use appropriate real life application in your discussion.

▶A machine shop, consisting of 6 distinct production areas is planning to
redesign its layout. The building is 90 feet long and 40 feet wide, with all
production areas of equal size. The material handling equipment being
used can only move clockwise on marked pathways, with loading/
unloading possible only at the centre of the production area. The pathways
have only been marked horizontally and vertically and no diagonal
movement of the loads between departments is possible. Management
has estimated that the cost of moving a single load in the facility is $1 for
every 10 feet. Flow matrix between different departments over the last
month and current layout are given.
▶ Design two layouts aimed at reducing the total material handling cost.
Calculate the material handling cost for both the layouts. Submit snapshots
of the work as a single file in google classroom

What is the primary defining difference between a thermoset and a thermoplastic material? (please explain with details)

Identify the material and process variables that influence the punch force in shearing, and explain how each of them affects this force. (please explain with details)

List the similarities and differences between direct extrusion and drawing. (please explain with details)

Derive and explain the effect of dynamic motor on force control and Hybrid position for coordinated robots Answer expected: i) Definition, ii) Derivation, and iii) remarks

note: please stick to the question's concept only please dont go out of the box will rate the answer for sure if its perfect thank you:)

Rigid tank A and tank B (containing water) are connected to a piston cylinder with two valves as shown below. The piston cylinder assembly is initially (state 1) empty when the valves are closed.

The pressure required to float the piston is 800kPa, the piston is constantly loaded and is free to move. Now the valves are opened and the fluid reaches a uniform state at 250C within the system (state 2).

Determine: (a) The final volume (5 points) (b) The final pressure (5 points) (c) The work done (5 points) (d) Show the process on a PV diagram (5 points) (e) The heat transfer

The initial conditions for tank A are: Mass=3kg T=120C Volume=0.6?3 The initial conditions for tank B are: P=600kPa T=200C Volume=0.4?3

show the root sum square method for describing the total uncertainty of a quantity, which depends on a set of parameters called Xi (i=1,n) explain the roll of the sensitivity coefficient of each parameters.

This is experimental fluid dynamics question, please explain nicely

A Styrofoam(k = 0.035 W/m-°C) box has outer dimensions of 250 mm x 450 mm x 600 mm and is 3 cm thick. Initially, the box is filled with 40kg of ice at 0°C, and the inner surface temperature of the ice chest can always be taken to be 0°C. The heat transfer coefficient between the outer surface of box and surrounding air at 35°C is 20 W/m2 -°C. (a) Determine how long it will take for the ice in the box to melt completely. Assume that the heat transfer from the 450 mm x 600 mm bottom of the box is negligible.

Derive the condition of stability of a vehicle while taking a turn in case of front wheel drive.

#subject VEHICLE DYNAMICS