MATERIALS SCIENCE & ENGINEERING:AN INTRO
10th Edition
ISBN: 9798203933584
Author: Callister
Publisher: ZYBOOKS
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1. Checksum. Assuming the following IP header lacking checksum:
01000101.00000000.11000011.00101010.
00000000.00000000.00000000.00000000.
10000000.00000000.00000000.00000000. <- checksum
01100011.11011001.00000000.00000001.
10000000.00000000.00000000.00000010
Compute its checksum
Assume a Space Launch System (Figure 1(a)) that is approximated as a cantilever undamped single degree of freedom (SDOF) system with a mass at its free end (Figure 1(b)). The cantilever is assumed to be massless. Assume a wind load that is approximated with a concentrated harmonic forcing function p(t) = posin(ωt) acting on the mass. The known properties of the SDOF and the applied forcing function are given below. • Mass of SDOF: m =120 kip/g • Acceleration of gravity: g = 386 in/sec2 • Bending sectional stiffness of SDOF: EI = 1015 lbf×in2 • Height of SDOF: h = 2000 inches • Amplitude of forcing function: po = 6 kip • Forcing frequency: f = 8 Hz
13.44 The end of a cylindrical liquid cryogenic propellant
tank in free space is to be protected from external
(solar) radiation by placing a thin metallic shield in
front of the tank. Assume the view factor Fts between
the tank and the shield is unity; all surfaces are diffuse
and gray, and the surroundings are at 0 K.
Tank
T₁
Shield, T
T₁ = 100 K
E1
Solar
irradiation
Gs
ε₁ = ε₂ = 0.05
ε₁ = 0.10
Gs = 1250 W/m²
E2
Find the temperature of the shield T, and the heat flux
(W/m²) to the end of the tank.
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- question 664 thank youarrow_forward5. Determine an expression for vo as a function of vs in the circuit shown below. Assume the operational amplifier is ideal (10 pts) 162 + + 212 10052} -j 100-52 Noarrow_forward13.38 Consider the attic of a home located in a hot climate. The floor of the attic is characterized by a width of L₁ = 8 m while the roof makes an angle of 0 = 30° from the horizontal direction, as shown in the schematic. The homeowner wishes to reduce the heat load to the home by adhering bright aluminum foil (ε = 0.07) onto the surfaces of the attic space. Prior to installation of the foil, the surfaces are of emissivity & = 0.90. Attic A2, 82, T2 0 = 30° A1, E1, T₁ 土 L₁ = 8 m (a) Consider installation on the bottom of the attic roof only. Determine the ratio of the radiation heat transfer after to before the installation of the foil. (b) Determine the ratio of the radiation heat transfer after to before installation if the foil is installed only on the top of the attic floor. (c) Determine the ratio of the radiation heat transfer if the foil is installed on both the roof bottom and the floor top.arrow_forward
- I would like to know the features of BranchCache, Metadata, and LPR Port Monitorarrow_forward13.1 Determine F2 and F2 for the following configura- tions using the reciprocity theorem and other basic shape factor relations. Do not use tables or charts. (a) Small sphere of area A, under a concentric hemi- sphere of area A₂ = 3A₁ A₂ A1 (a) (b) Long duct. Also, what is F₁₂? A₂ Αν (b) (c) Long inclined plates (point B is directly above the center of A₁) B 100 mm A₂ - 220 mm (c) (d) Long cylinder lying on infinite plane + A₁ Az (d) (e) Hemisphere-disk arrangement -A₂, hemisphere, diameter D A₂ A₁, disk, diameter D/2 (e) (f) Long, open channel 1 m AA₂ 2 m (f) (g) Long cylinders with A₁ = 4A₁. Also, what is F₁₂? -D₁ A1 -A₂ -D2 (e) (h) Long, square rod in a long cylinder. Also, what is F22? w=D/5 18 A₁ -A2 (h) -Darrow_forwardThe direction of the force F_11 is __________LB. The magnitude of the force F_11 is __________LB.arrow_forward
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