Engineering

Mechanical EngineeringQ&A LibraryA 0.083-in-diameter electrical wire at 90°F is covered by 0.02-in-thick plastic insulation (k = 0.075 Btu/ h·ft·°F). The wire is exposed to a medium at 50°F, with a combined convection and radiation heat transfer coefficient of 2.5 Btu/h·ft2·°F. Determine if the plastic insulation on the wire will increase or decrease heat transfer from the wire.Start your trial now! First week only $4.99!*arrow_forward*

Question

A 0.083-in-diameter electrical wire at 90°F is

covered by 0.02-in-thick plastic insulation (k = 0.075 Btu/

h·ft·°F). The wire is exposed to a medium at 50°F, with

a combined convection and radiation heat transfer coefficient

of 2.5 Btu/h·ft2·°F. Determine if the plastic insulation

on the wire will increase or decrease heat transfer from the

wire.

Tagged in

Engineering

Mechanical Engineering

Find answers to questions asked by students like you.

Q: The shaded area shown is bounded by y axis and the curve y2 =(2.56−x)m2 , where x is in m. Suppose t...

A: Draw a diagram of the given shaded area.

Q: 4/37 The truss is composed of equilateral triangles of side a and is supported and loaded as shown. ...

A: Click to see the answer

Q: 8.9 Design a mechanical system which can be used to: (a) operate a sequence of microswitches in a ti...

A: (a) Mechanical system used to operates a sequence of microswitches in a timed sequence is Camshaft. ...

Q: Draw the following crystal directions within an orthorhombic unit cell: [101], [112], [100], [110], ...

A: The above question is based on orthorombic unit cell.

Q: The mechanism shown is one of two identical mechanisms attached to the two sides of a 180-lb uniform...

A: Click to see the answer

Q: Q4- A rectangular gate 6 ft tall and 5 ft wide in the side of an open tank is held in place by the f...

A: Given data A rectangular gate with dimension : 6 ft tall 5 ft wide To determine : (a) Determin...

Q: a) By inspection only, determine the zero force members. P H D E K M A

A: Click to see the answer

Q: 2/27 The 4-kN force F is applied at point A. Compute the moment of F about point O, expressing it bo...

A: Data given- F = 4 kN X cordinates = 1.2 Y cordinates = 1.5

Q: When replacing brake pads on a vehicle: Tech-nician A works on one wheel before beginning work on an...

A: Click to see the answer

Q: 25. A bare-thermal reactor in the shape of a cube consists of a homogeneous mixture of 235U and grap...

A: Given data A bare-thermal reactor in the shape of a cube consists of a homogeneous mixture 235U Th...

Q: For the instant represented, point B crosses the horizontal axis through point O with a downward vel...

A: Given conditions, Velocity = 0.6 m/s determine the angular velocity ωOA of link OA. Determine the ...

Q: 10.11/ A 1.5-kg specimen of a 90 wt% Pb-10 wt% Sn alloy is heated to 250°C (480°F), at which tempera...

A:

Q: Refrigerant-134a enters the condenser of a residential heat pump at 800 kPa and 358C at a rate of 0....

A: Inlet pressure = 800 kpa Inlet temperature = 35 C mass flow rate = 0.018 kg/m3 Exit pressure = 800 k...

Q: Problem I am playing with rolling car and give it an initial velocity of vo. I determine that the ac...

A: This is a problem of classical mechanics. The condition explained in the question can be clearly vis...

Q: 40 MPa Determine: (a) principal planes, (b) the principal stresses (c) the orientation of the planes...

A: given that, σx=60MPaσy=40MPaτxy=-35MPataking leftward and downward direction positveand rightward an...

Q: • 1. A particle position given by s(t) = 4 t2 - 32 t +36 with s in meters and t in seconds. At what ...

A: 1.Given:S(t)=4t2-32t+36For particle to stop the velocity must be zero.Now,Velocity,V(t)=dS(t)dt⇒V(t)...

Q: An underwater sonar that maps the ocean bathymetry is encapsulated in a sphere with a diameter of 85...

A: Write the given value using the suitable variables. Here D signifies sphere diameter, Q signifies h...

Q: Separate streams of steam and air flow through the turbine and heat exchanger arrangement shown in t...

A: Given Data State 1:20 bar,600°C State 2: 10 bar,400°C State 3:10 bar State 4:1 bar,240°C State 5:1....

Q: The nose-wheel assembly is raised by the application of a torque M to link BC through the shaft at B...

A: Click to see the answer

Q: The uniform 100-kg I-beam is supported initially by its end rollers on the horizontal surface at A a...

A: First, consider the free body diagram. The reaction at roller at A and the weight are vertical force...

Q: A rear-wheel-drive car weighs 2600 lb and has an 84-inch wheelbase, a center of gravity 20 inches ab...

A: Click to see the answer

Q: The shaft in Fig. (a) consists of a 3-in. -diameter aluminum segment that is rigidly joined to a 2-i...

A: Click to see the answer

Q: Technician A says vehicle inspection pits allow access to the vehicle's underside without using a ho...

A: The inspection of the vehicle is done to maintain the standard requirements of the vehicle as per th...

Q: Two uniform aluminum spheres are positioned as shown. Determine the gravitational force which sphere...

A: Given: R = 50 mmAluminum density = 2710Mass of sphere A,MA=43πRA3×ρMA=43πRA3×ρMA=43π2×0.53×2.71×103M...

Q: 3444 stress at the POI. Make sure that you label the shear and bending moment diagrams with all valu...

A: Given data Ay = 12.67 k By = 29.33 k y = 0.1026 ft I = 0.00526 ft4 and cross-section of beam ...

Q: Q5: Hot water in an open storage tank at 82.2 °C is being pumped at the rate of 0.379 m/min from thi...

A: Given data

Q: The bucket of an excavator at a construction site is subjected to 5.5 kN and 3 kN digging forces at ...

A: Write the given data with suitable variables. F1=5.5 kNF2=3 kN

Q: The figure below shows an experiment with two marbles. Marble A was launched towards marble B with l...

A: Take marble A into consideration. Resolve the velocity of marble A into horizontal and vertical comp...

Q: Determine the magnitude of the resultant force. Express your answer to three significant figures and...

A: Given data F1 = 850N F2 = 425N F3 = 750N Given figure

Q: Determine the maximum normal stress developed on the cross section of the supporting member at secti...

A: Given Data: The load is W=580 lb. The eccentricity is e=1.5 ft. The radius of the cross-section is ...

Q: Example 1 A shaft is transmitting 100 kW at 160 rp.m. Find a suitable diameter for the shaft, if the...

A: Stress: When a component or a part is subjected to any external force, a resisting force will be de...

Q: The pipe assembly is subjected to the force of F = (550 i + 800j - 600 k} N. (Figure 1) Part A Deter...

A: Given Data F=(550i+800j-600k) N

Q: A shell and tube heat exchanger is designed as a counter to cool a mass flow rate of 60 kg/h of engi...

A: Click to see the answer

Q: Consider the following reaction: 4NH3(g) + 5O2 (g) → 4NO (g) + 6H2O(g) a container were to have onl...

A: Click to see the answer

Q: 4)- The crate has a weight of 550 lb. Determine the force in each supporting cable. B D

A: Click to see the answer

Q: *10–32. Determine the moment of inertia of the shaded area about the x axis. 10-33. Determine the mo...

A: Click to see the answer

Q: Tuning Fork A point on the end of a tuningfork moves in simple harmonic motion described byd = a sin...

A: Let us consider a tuning fork that moves in a simple harmonic motion described by,d=a sinωtThe frequ...

Q: A 40 kg boy is sliding down the smooth spiral such that z= -2 m/s and his initial speed is 2 m/s. De...

A: Click to see the answer

Q: A force F is applied in yz plane at C. Determine the moment of the force about B. F = 500 N, a = 10 ...

A: Draw the FBD for the given question.

Q: How many standard ASE tests are offered for automotive repair?

A: Almost 50 tests are offered for automotive repair. Electronic Diesel Engine Diagnosis Specialist ...

Q: -Large numerical values of k imply that a spring is very "stiff" and conversely. small values of k s...

A: The stiffness of a spring is defined as that value of force applied to it in such a way that that de...

Q: Two bolts are used to form a joint connecting rectangular bars in tension as shown. If the bolts hav...

A: Click to see the answer

Q: | 0.5 m 0.4 m It is known that a moment with a magnitude of 200 N-m will cause rod to fail at the fi...

A: givenmoment with a magnitude M=200Nm

Q: The electric motor exerts a 220 N• m-torque on the aluminum shaft ABCD when it is rotating at a cons...

A: Click to see the answer

Q: Use the graphical method to construct the shear-force and bending-moment diagrams for the beam shown...

A: Draw the free-body diagram.

Q: 3.4. Consider a normal shock wave in air The upstream conditions are given by M 3; 1 atm, and p, = 1...

A: Given: Normal shock wave in air. The upstream condition are: M1=3P1=1 atmρ=1.23 kg/m3

Q: Q3) A beam is loaded and supported as shown in Figure (3). The beam has a uniform cross section and ...

A: Click to see the answer

Q: Calculate the magnitude of the force acting on the pin at D. Pin C is fixed in DE and bears against ...

A: Mechanical Equilibrium: A body is said to be in mechanical equilibrium if it satisfies the following...

Q: 6o mm GIVEN: G =386 MDa T=25 KN.M `M=13KN-M

A: As it is not mentioned that which three parts of the question need to be solved, please find the sol...

Q: A compression spring is needed to fit over a 0.4 in diameter rod. To allow for some clearance, the i...

A: Since we only answer up to three subparts, we will answer the first three. Please resubmit the quest...