FUND MAT SCI+ENG ACCESS+EPUB
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ISBN: 9781119662815
Author: Callister
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Chapter 13.16, Problem 2DP
To determine
To write:
About the metallic glasses and address the following:
- (a) Composition of commonly used metallic glasses.
- (b) Characteristics of metallic glasses.
- (c) Limitations of metallic glasses.
- (d) Potential uses of metallic glasses.
- (e) Technique that is used to produce metallic glasses.
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A dc compound motor having a rating of 10 kW,
1150 r/min, 230 V, 50 A, has the following losses at
full-load:
bearing friction loss
40 W
brush friction loss
==
50 W
windage loss
=
200 W
(1)
total mechanical losses
=
290 W
(2)
iron losses
=
420 W
(3)
copper loss in the shunt field
=
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A gravity retaining wall is shown in the figure below. Calculate the factor of safety with respect to overturning and sliding, given the following data:
Wall dimensions: H = 6 m, x₁ = 0.6 m, x2 = 2 m, x3 = 2m,
x4 0.5 m, x5 = 0.75 m, x6 = 0.8 m, D= 1.5 m
Soil properties: 71 = 14 kN/m³, ₁ = 32°, 72 = 18 kN/m³,
2=22°, c₂ = 40 kN/m²
Y₁
c₁ = 0
H
Φί
x5
x6
Use the Rankine active earth pressure in your calculation. Use Yconcrete = 23.08 kN/m³. Also, use k₁ = k₂ = 2/3 and Pp = 0 in the equation
FS (sliding)
(ΣV) tan(k102) + Bk2c2 + Pp
Pa cos a
(Enter your answers to three significant figures.)
FS (overturning)
FS (sliding)
=
Chapter 13 Solutions
FUND MAT SCI+ENG ACCESS+EPUB
Ch. 13.16 - Prob. 1QPCh. 13.16 - Prob. 2QPCh. 13.16 - Prob. 3QPCh. 13.16 - Prob. 4QPCh. 13.16 - Prob. 5QPCh. 13.16 - Prob. 6QPCh. 13.16 - Prob. 7QPCh. 13.16 - Prob. 8QPCh. 13.16 - Prob. 9QPCh. 13.16 - Prob. 10QP
Ch. 13.16 - Prob. 11QPCh. 13.16 - Prob. 12QPCh. 13.16 - Prob. 13QPCh. 13.16 - Prob. 14QPCh. 13.16 - Prob. 15QPCh. 13.16 - Prob. 16QPCh. 13.16 - Prob. 17QPCh. 13.16 - Prob. 18QPCh. 13.16 - Prob. 19QPCh. 13.16 - Prob. 20QPCh. 13.16 - Prob. 21QPCh. 13.16 - Prob. 22QPCh. 13.16 - Prob. 23QPCh. 13.16 - Prob. 1DPCh. 13.16 - Prob. 2DPCh. 13.16 - Prob. 3DPCh. 13.16 - Prob. 4DPCh. 13.16 - Prob. 5DPCh. 13.16 - Prob. 6DPCh. 13.16 - Prob. 7DPCh. 13.16 - Prob. 8DPCh. 13.16 - Prob. 1FEQPCh. 13.16 - Prob. 2FEQPCh. 13.16 - Prob. 3FEQPCh. 13.16 - Prob. 4FEQP
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- For the cantilever retaining wall shown in the figure below, let the following data be given: Wall dimensions: H = 8 m, x1 = 0.4 m, x2 = 0.6 m, x3 = 1.5 m, x4 3.5 m, x5 = 0.96 m, D= 1.75 m, a = 10° Soil properties: 71 = 14.8 kN/m³, ₁ = 32°, Y₂ = 1 2 = 28°, c = 30 kN/m² 17.6 kN/m³, The value of Ka is 0.3210. For 2 = 28°: N = 25.80; N₁ = 14.72; N₁ = 16.72. c=0 H Χς Calculate the factor of safety with respect to overturning, sliding, and bearing capacity. Use Yconcrete = 21.58 kN/m³. Also, use k₁ = k₂ = 2/3 and P = 0 in the equation FS (sliding) (ΣV) tan(k₁₂) + Bk2C + Pp Pa cosa (Enter your answers to three significant figures.) FS (overturning) FS (sliding) FS (bearing) =arrow_forward4 What determines the power rating of a ma- chine? -5 If we cover up the vents in a motor, its out- put power must be reduced. Explain. -6 If a motor operates in a cold environment, may we load it above its rated power? Why?arrow_forwardAn electric motor driving a skip hoist with- draws 1.5 metric tons of minerals from a trench 20 m deep every 30 seconds. If the hoist has an overall efficiency of 94 percent, calculate the power output of the motor in horsepower and in kilowatts.arrow_forward
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