Determine the temperatures on the two sides of the circuit board.
Q: Para la figura que se muestra a continuación, determine el valor de la masa (m en slugs) del bloque…
A:
Q: A railroad tie (or sleeper) is subjected to two rail loads, each of magnitude P = 177 kN, acting as…
A: A railroad tie (or sleeper) is subjected to two rail loads, each of magnitude P = 177 kN, acting as…
Q: Flv = lb
A: To determine the reaction force at node 1given diametermoment of inertia length of the beam length…
Q: torque T of 100 N-m is applied to a wheel D having a mass of 50 kg. a diame- ter of 600 mm, and a…
A: The torque applied is .The mass ofwheel is .The diameter of wheel is .The radius of gyration is .The…
Q: The figure shows the plane stress condition at an element. What is the maximum compression stress…
A:
Q: A particle of mass 2.0 kg moves along the x axis through a region in which its potential energy U(x)…
A: We can see that part (a) is already solved so here we will provide the solution for rest of two…
Q: A gate (shown in blue with a fixed angle of 135°) in a water tank has a frictionless hinge (a linear…
A:
Q: ل Q = 20cfs P - 15 : F, 36in محياه E N { P₂² - 24 in 5° با = 14.7 8 Ps
A:
Q: In the following figure, a machine is installed in the water drainage system. Knowing that the…
A:
Q: A rock weighs 1200N in air and 620 N in water. Find its volume (V)
A:
Q: Q6/ A beam AB of span 8m is simply supported at the ends. It carries point loads of 4KN and 8KN at…
A: Left hand reaction=19 kNTo determine:Reaction at right handThe magnitude of w
Q: A longitudinal rolling process for plates is given. The diameter of the work rolls is dw = 150 mm.…
A: a) To determine the minimum thickness to which the sheet can be rolled, we need to calculate the…
Q: 1. A thermometer is taken from a room that is 20 °C to the outdoors where the temperature is 5 °C.…
A:
Q: 8 kN/m -4 m B 12 KN -2m- 125 mm 25 mm 25 mm 75 mm; 75 mm;
A: The value of d is
Q: Analyze the challenges and advancements in microchip manufacturing processes, including the…
A: to explain:The challenges and advancements in microchip manufacturing processesConcept use:Microchip…
Q: The 58-lb crate is given a speed of 13 ft/s in t = 4 s starting from rest. The acceleration is…
A:
Q: From the image below, identify the values of the position coordinates and SB. SA is for block A and…
A:
Q: DRAW AN AUXILIARY VIEW THAT SHOWS THE TRUE SHAPE OF THE ANGLED CUT KEYWAY, ALONG WITH A TOP VIEW.
A: Given DataThe front and the top view of the object are provided in the question in third angle…
Q: 1. Water enters a hydraulic jump at 15 m/s with a depth of 3 m. Knowing that C, for water is 1…
A: To Find:the height of the jump.the temperature increase.Given:the inlet velocity is the inlet depth…
Q: Q#1: The mechanism shown is used in a riveting machine. It consists of a driving piston A, three…
A:
Q: calculate the mean free path
A: Write the general expression for mean free path.R is nitrogen gas constant.d is the diameter of…
Q: 4) For the beam shown, (a) compute the bending moment. (b) determine the deflection v(x) and check…
A:
Q: The velocity profile in a circular pipe of radius R = 10 cm is given by: U(r) = Umax [1- ()] where…
A:
Q: A long spring has a mass of 1 slug attached to it. The spring stretches 16/13 ft and comes to rest.…
A:
Q: 3.4-4 A solid circular bar ABC consists of two segments, as shown in the figure. One segment has…
A:
Q: Problem 95. Two identical hockey pucks moving with initial velocities Vand Vg collide as shown. If…
A:
Q: The tractor shovel carries a 981 N load of soil having a center of mass at G. Compute the force…
A: Internal Forces on Two-Force Members:To keep a structure in equilibrium, internal reactions are…
Q: When a fluid flows through a sharp bend, low pressures may develop in localized regions of the bend.…
A:
Q: Water accelerated by a nozzle to 35 m/s strikes the verticalback surface of a cart moving…
A: Calculate the amount of force the cart's brakes must apply in order to keep it from accelerating.…
Q: 2. Determine the equilibrium temperature distribution (r, 0) inside a uniform sphere of radius R,…
A:
Q: The pipe assembly is subjected to the action of a wrench at B and a couple at A. (Figure 1) Simplify…
A:
Q: Q.3) A bent pipe system is supported by journal bearings at A, B and E. It is subjected to a force…
A:
Q: A 0.225m 1670N 0.3m I = 0.169 x 106mm ¹ Showing all calculations. 2500N 1.05m C Determine the…
A:
Q: A heating section consists of a 38-cm-diameter duct that houses a 4-kW electric resistance heater.…
A: Given:Diameter, d=38 cmP1= 1 atmT1= 10oCv1= 8 m/sQ=4 kw
Q: A turbine blade rotates with angular velocity w(t) = 3.1 rad -2.7 rad +2. What is the angular…
A:
Q: Determine the bending moment function for the beam and draw its bending moment diagram.
A: Determine the bending moment function for the beam and draw its bending moment diagram.
Q: In (Eigure 1), ay = 14.7 ksi Figure 10 ksi 20 ksi Express your answers, separated by commas, to…
A:
Q: a) Estimate the thermal conductivity along a copper film with various thicknesses: d = 400, 100, and…
A:
Q: Q5 / A simply supported beam AB of span 7m, carries three point load of 2KN, 6KN & 4KN at 2m, 4m &…
A:
Q: A 100 mm diameter shaft is subjected to a 10 kN.m bending moment and an axial tension force of 150…
A:
Q: 300 lb 6 ft 200 lb/ft
A:
Q: Find the total time to complete 1000 radians.
A: To determine the total time in 1000 radiansgiven angular velocity, time taken as acceleration
Q: Compute the lift and drag coefficients for a flat plate airfoil of chord length c = 1m in supersonic…
A: To determine:the lift and drag coefficients for a flat plate airfoilGiven:chord length is
Q: Using the following dimensional scales x' = x/l; y' = y/l; u' = u/U; v' = v/U; p' = p/(pU²); B' =…
A: Note:- As per honor code and answering guidelines I can answer first three subparts at a time.If you…
Q: If the tension developed in each of the three cables, AB, CD, and EF, is the same, find the location…
A:
Q: Problem 3 - Clausius Inequality. The table below shows different processes occurring in a power…
A: Given data:To determineTo check whether the process is reversible, possible or impossible.Whether…
Q: *14-76. Determine the vertical displacement of joint C. Each A-36 steel member has a cross-sectional…
A:
Q: What did you put in the calculator to get the box answers? Please put exactly what you put
A: The solution provided in the previous response is as follows.
Q: Problem 2 – Control volume compressor analysis An adiabatic compressor used in a refrigeration…
A: To answer these questions, we'll use the properties of R-134a from a refrigerant table (you can find…
Q: of joints to compute 1 BE of the loaded Howe roof truss as shown in Fig. 1 EF, BF, and AP of the…
A: Given:AB= BC= CD= 3 mAG=3 mCE= 2 mLoad applied of D = 14 kN
A 0.3-cm-thick, 12-cm-high, and 18-cm-long circuit board houses 80 closely spaced logic chips on one side,
each dissipating 0.06 W. The board is impregnated with copper fillings and has an effective thermal
conductivity of 16 W/m · °C. All the heat generated in the chips is conducted across the circuit board and
is dissipated from the back side of the board to the ambient air at 30°C, which is forced to flow over the
surface by a fan at a free-stream velocity of 400 m/min. Determine the temperatures on the two sides of
the circuit board.
Step by step
Solved in 4 steps with 17 images
- A pipe 30 m long with an outer diameter of 75 mm is used to carry steam at a rate of 1000 kg / hour. The vapor pressure is 198.53 kPa entering the pipe with a quality of 98%. The pipe needs to be insulated with a thermal conductivity of 0.2 W / (m K) so that the quality of the steam will only slightly decrease to 95%. The outer surface temperature of the insulation is assumed to be 25 ° C. Ignore resistance conductive of the pipe material and it is assumed that there is no pressure drop in the pipe. a. Determine the enthalpy of incoming vapor = Answer kJ / kg. b. Determine the enthalpy of steam coming out = Answer kJ / kg. c. Determine the vapor heat change / loss along the flow = Answer watt. d. Specify the minimum required insulation thickness = Answer cm.A pipe 30 m long with an outer diameter of 75 mm is used to deliver steam at a rate of 2000 kg / hour. The vapor pressure is 198.53 kPa entering the pipe with a quality of 98%. The pipe needs to be insulated with a thermal conductivity of 0.2 W / (m K) so that the quality of the steam will only slightly decrease to 95%. The outer surface temperature of the insulation is assumed to be 25 ° C. Ignore resistance conductive of the pipe material and it is assumed that there is no pressure drop in the pipe. a. Determine the enthalpy of incoming vapor = AnswerkJ / kg. b. Determine the enthalpy of steam coming out = AnswerkJ / kg. c. Determine the vapor heat change / loss along the flow = Answerwatt. d. Specify the minimum required insulation thickness = Answercm.A pipe 30 m long with an outer diameter of 75 mm is used to deliver steam at a rate of 1500 kg / hour. The vapor pressure is 198.53 kPa entering the pipe with a quality of 98%. The pipe needs to be insulated with a thermal conductivity of 0.2 W / (m K) so that the quality of the steam will only slightly decrease to 95%. The outer surface temperature of the insulation is assumed to be 25 ° C. Ignore resistance conductive of the pipe material and it is assumed that there is no pressure drop in the pipe. a. Determine the enthalpy of incoming vapor = Answer kJ / kg. b. Determine the enthalpy of steam coming out = Answer kJ / kg. c. Determine the vapor heat change / loss along the flow = Answer watt. d. Specify the minimum required insulation thickness = Answer cm.
- Calculate the heat transfer rate (in W) through a 2.65 m2 door with h = 0.21 W(m2•K) The temperature of the cold air outside is −12°C and the temperature of the door is 20°C.A pipe 30 m long with an outer diameter of 75 mm is used to deliver steam at a rate of 1500 kg / hour. The steam pressure is 198.53 kPa entering the pipe with a quality of 98%. The pipe that needs to be insulated with a thermal conductivity of 0.2 W / (m K) so that the quality of the steam only decreases slightly to 95%. The temperature of the outer surface of the insulation is assumed to be 25 ° C. The conductive of the pipe material and the situation of no pressure drop in the pipe. A. Determine the enthalpy of incoming vapor = Answer kJ / kg. b. Determine the enthalpy of steam that comes out = Answer kJ / kg. c. Determine the change / loss of steam heat along the flow = Answer watt. d. Determine the minimum required insulation thickness = Answer cm.A wall with a thermal conductivity of 0.50W/m·K is maintained at 40.0°C. The heat transfer through the wall is 250.0W. The wall surface area is 1.50m2 and its thickness is 1.00cm. Determine the temperature at the outside surface.
- A camper has a propane-powered refrigerator. The refrigerator consumes approximately 0.50 kgof propane per day. When propane is burned completely, it releases approximately 50. MJ/kg.The interior of the refrigerator is maintained at an average temperature of 2.0 °C, and theexterior temperature is 22 °C. Assume that the refrigerator has a surface area of 2.0 m2 and thatthe insulation has an R-value of 3.2 K · m2/W.(a) At what rate does heat flow into the refrigerator?(b) At what rate must the refrigerator remove heat from its interior?(c) How much energy is released per second from the propane combustion?(d) How much heat is delivered to the room?The temperature at the inner and outer surfaces of a boiler wall made of 20 mm thick steel and covered with an insulating material of 5 mm thickness are 300° C and 50° C respectively. If the thermal conductivities of steel and insulating material are 58W/m'C and 0.116 W/m'C respectively, determine the rate of flow through the boilerA pipe in a manufacturing plant is transporting superheated vapor at a mass flow rate of 0.3 kg/s. The pipe is 10 m long and has an inner diameter of 5 cm and a wall thickness of 6 mm. The pipe has a thermal conductivity of 17 W/m·K, and the inner pipe surface is at a uniform temperature of 120°C. The temperature drop between the inlet and exit of the pipe is 7°C, and the constant pressure specific heat of vapor is 2190 J/kg·°C. If the air temperature in the manufacturing plant is 25°C, determine the heat transfer coefficient as a result of convection between the outer pipe surface and the surrounding air.
- The heat generated in the circuitry on the surface of a silicon chip (k =130 W/m.C) is conducted to the ceramic substrate to which it is attached. The chip is 6 mm X 6 mm in size and 0.5 mm thick and dissipates 3 W of power for 24 hours. Disregarding any heat transfer through the 0.5 mm high side surfaces, determine the amount of heat dissipates during the 24-hour period. Silicon chip 0.5 mm 3 W CeramicC substrate Select one a. None of the above b. 0.072KWh c. 0.72KWh d. 0.027KWhA heater plate measures 40 cm x 40 cm in the tank and is kept at a constant temperature of 70 oC.Show the calculations in which case it can heat the oil at a temperature of 30 oC in the tank. For oil: ν=0.00026 m2 / s, k=0.15 W / mK, Pr=2900Consider a steel pan used to boil water on top of an electric range. The bottom section of the pan is L =0.5 cm thick and has a diameter of D =25 cm. The electric heating unit on the range top consumes 1.5k W of power during cooking, and 75 percent of the heat generated in the heating element is transferred uniformly to the pan. Heat transfer from the top surface of the bottom section to the water is by convection with a heat transfer coefficient of h=500W/m2 Assuming constant thermal conductivity and one-dimensional heat transfer, express the mathematical formulation (the differential equation and the boundary conditions) of this heat conduction problem during steady operation. Do not solve.