Engineering Mechanics: Statics & Dynamics (14th Edition)
14th Edition
ISBN: 9780133915426
Author: Russell C. Hibbeler
Publisher: PEARSON
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Textbook Question
Chapter 9.1, Problem 21P
Locate the centroid
Probs. 9-21/22
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Question 2
You are an engineer working in the propulsion team for a supersonic civil transport
aircraft driven by a turbojet engine, where you have oversight of the design for the
engine intake and the exhaust nozzle, indicated in Figure Q2a. The turbojet engine can
operate when provided with air flow in the Mach number range, 0.60 to 0.80. You are
asked to analyse a condition where the aircraft is flying at 472 m/s at an altitude of
14,000 m. For all parts of the question, you can assume that the flow path of air through
the engine has a circular cross section.
(a)
normal
shock
472 m/s
A B
(b)
intake
engine
altitude: 14,000 m
D
exhaust nozzle→
exit to
atmosphere
472 m/s
50 m/s
B
diameter: DE = 0.30 m
EX
diameter: DF = 0.66 m
Figure Q2: Propulsion system for a supersonic aircraft.
F
a) When the aircraft is at an altitude of 14,000 m, use the International Standard
Atmosphere in the Module Data Book to state the local air pressure and tempera-
ture. Thus show that the aircraft speed of…
given below:
A rectangular wing with wing twist yields the spanwise circulation distribution
kbV1
roy) = kbv. (2)
where k is a constant, b is the span length and V. is the free-stream velocity. The wing has an
aspect ratio of 4. For all wing sections, the lift curve slope (ag) is 2 and the zero-lift angle of
attack (a=0) is 0.
a. Derive expressions for the downwash (w) and induced angle of attack a distributions
along the span.
b. Derive an expression for the induced drag coefficient.
c. Calculate the span efficiency factor.
d. Calculate the value of k if the wing has a washout and the difference between the
geometric angles of attack of the root (y = 0) and the tip (y = tb/2) is:
a(y = 0) a(y = ±b/2) = /18
Hint: Use the coordinate transformation y = cos (0)
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العنوان
O
не
شكا
+91x PU + 96852
A heavy car plunges into a lake during an accident and lands at the bottom of the lake
on its wheels as shown in figure. The door is 1.2 m high and I m wide, and the top edge of
Deine the hadrostatic force on the
Plot the displacement diagram for a cam with roller follower of diameter 10 mm. The required
motion is as follows;
1- Rising 60 mm in 135° with uniform acceleration and retardation motion.
2- Dwell 90°
3- Falling 60 mm for 135° with Uniform acceleration-retardation motion.
Then design the cam profile to give the above displacement diagram if the minimum circle
diameter of the cam is 50 mm.
=
-20125
750 x2.01
Chapter 9 Solutions
Engineering Mechanics: Statics & Dynamics (14th Edition)
Ch. 9.1 - In each case, use the element shown and specify...Ch. 9.1 - Determine the centroid (x,y) of the shaded area....Ch. 9.1 - Determine the centroid (x,y) of the shaded area....Ch. 9.1 - Determine the centroid of the shaded area. Prob....Ch. 9.1 - Locate the center of mass x of the straight rod if...Ch. 9.1 - Locate the centroid of the homogeneous solid...Ch. 9.1 - Locate the centroid z of the homogeneous solid...Ch. 9.1 - Locate the center of mass of the homogeneous rod...Ch. 9.1 - Prob. 2PCh. 9.1 - Locate the center of gravity x of the homogeneous...
Ch. 9.1 - Locate the center of gravity of the homogeneous...Ch. 9.1 - Prob. 5PCh. 9.1 - Locate the centroid of the area.Ch. 9.1 - Locate the centroid x of the parabolic area. Prob....Ch. 9.1 - Prob. 8PCh. 9.1 - Locate the centroid x of the shaded area. Probs....Ch. 9.1 - Locate the centroid of the shaded area. Probs....Ch. 9.1 - Locate the centroid x of the area. Probs. 9-11/12Ch. 9.1 - Locate the centroid of the area. Probs. 9-11/12Ch. 9.1 - Locate the centroid x of the area. Probs. 9-13/14Ch. 9.1 - Locate the centroid of the area. Probs. 9-13/14Ch. 9.1 - Prob. 15PCh. 9.1 - Prob. 16PCh. 9.1 - Prob. 17PCh. 9.1 - Prob. 18PCh. 9.1 - Prob. 19PCh. 9.1 - Prob. 20PCh. 9.1 - Locate the centroid x of the shaded area. Probs....Ch. 9.1 - Locate the centroid of the shaded area. Probs....Ch. 9.1 - Prob. 23PCh. 9.1 - Locate the centroid of the shaded area. Probs....Ch. 9.1 - Prob. 25PCh. 9.1 - Locate the centroid x of the shaded area. Probs....Ch. 9.1 - Locate the centroid of the shaded area. Probs....Ch. 9.1 - Prob. 28PCh. 9.1 - Prob. 29PCh. 9.1 - Locate the centroid x of the shaded area. Probs....Ch. 9.1 - Prob. 31PCh. 9.1 - Prob. 32PCh. 9.1 - Prob. 33PCh. 9.1 - The steel plate is 0.3 m thick and has a density...Ch. 9.1 - Prob. 35PCh. 9.1 - Prob. 36PCh. 9.1 - Prob. 37PCh. 9.1 - Determine the location r of the centroid C for the...Ch. 9.1 - Locate the center of gravity of the volume. The...Ch. 9.1 - Prob. 40PCh. 9.1 - Locate the centroid z of the frustum of the...Ch. 9.1 - Prob. 42PCh. 9.1 - Locate the centroid of the quarter-cone. Prob....Ch. 9.1 - Prob. 44PCh. 9.1 - Locate the centroid z of the volume. Prob. 9-45Ch. 9.1 - Prob. 46PCh. 9.1 - Prob. 47PCh. 9.1 - Prob. 48PCh. 9.1 - Prob. 49PCh. 9.1 - Prob. 50PCh. 9.2 - Locate the centroid (x,y,z) of the wire bent in...Ch. 9.2 - Prob. 8FPCh. 9.2 - Prob. 9FPCh. 9.2 - Prob. 10FPCh. 9.2 - Prob. 11FPCh. 9.2 - Prob. 12FPCh. 9.2 - Prob. 51PCh. 9.2 - Prob. 52PCh. 9.2 - Prob. 53PCh. 9.2 - Prob. 54PCh. 9.2 - Locate the centroid (x,y) of the metal cross...Ch. 9.2 - Prob. 56PCh. 9.2 - Prob. 57PCh. 9.2 - Determine the location of the centroidal axis xx...Ch. 9.2 - Locate the centroid (x,y) of the shaded area....Ch. 9.2 - Prob. 60PCh. 9.2 - Determine the location of the centroid C of the...Ch. 9.2 - Locate the centroid (x,y) of the shaded area....Ch. 9.2 - Determine the location of the centroid of the...Ch. 9.2 - Locate the centroid (x,y) of the shaded area....Ch. 9.2 - Determine the location (x,y) of the centroid C of...Ch. 9.2 - Determine the location of the centroid C for a...Ch. 9.2 - Locate the centroid of the cross-sectional area...Ch. 9.2 - A triangular plate made of homogeneous material...Ch. 9.2 - A triangular plate made of homogeneous material...Ch. 9.2 - Prob. 70PCh. 9.2 - Prob. 71PCh. 9.2 - Prob. 72PCh. 9.2 - Prob. 73PCh. 9.2 - Prob. 74PCh. 9.2 - Locate the center of mass (x,y,z) of the...Ch. 9.2 - The sheet metal part has the dimensions shown....Ch. 9.2 - Prob. 77PCh. 9.2 - The wooden table is made from a square board...Ch. 9.2 - Prob. 79PCh. 9.2 - Prob. 80PCh. 9.2 - Prob. 81PCh. 9.2 - Prob. 82PCh. 9.2 - Prob. 83PCh. 9.2 - Prob. 84PCh. 9.2 - Determine the distance z to the centroid of the...Ch. 9.2 - Prob. 86PCh. 9.2 - Prob. 87PCh. 9.2 - Prob. 88PCh. 9.2 - Prob. 89PCh. 9.3 - Prob. 13FPCh. 9.3 - Prob. 14FPCh. 9.3 - Prob. 15FPCh. 9.3 - Prob. 16FPCh. 9.3 - Prob. 90PCh. 9.3 - Prob. 91PCh. 9.3 - Prob. 92PCh. 9.3 - Prob. 93PCh. 9.3 - Prob. 94PCh. 9.3 - Prob. 95PCh. 9.3 - Prob. 96PCh. 9.3 - Determine the volume of concrete needed to...Ch. 9.3 - Determine the surface area of the curb. Do not...Ch. 9.3 - Prob. 99PCh. 9.3 - Prob. 100PCh. 9.3 - Prob. 101PCh. 9.3 - Prob. 102PCh. 9.3 - Prob. 103PCh. 9.3 - Prob. 104PCh. 9.3 - Prob. 105PCh. 9.3 - Prob. 106PCh. 9.3 - Prob. 107PCh. 9.3 - Prob. 108PCh. 9.3 - Prob. 109PCh. 9.3 - Prob. 110PCh. 9.3 - Prob. 111PCh. 9.3 - Prob. 112PCh. 9.3 - Prob. 113PCh. 9.3 - Prob. 114PCh. 9.5 - Determine the magnitude of the hydrostatic force...Ch. 9.5 - Determine the magnitude of the hydrostatic force...Ch. 9.5 - Prob. 19FPCh. 9.5 - Prob. 20FPCh. 9.5 - Prob. 21FPCh. 9.5 - The pressure loading on the plate varies uniformly...Ch. 9.5 - The load over the plate varies linearly along the...Ch. 9.5 - Prob. 117PCh. 9.5 - Prob. 118PCh. 9.5 - Prob. 119PCh. 9.5 - When the tide water A subsides, the tide gate...Ch. 9.5 - The tank is filled with water to a depth of d = 4...Ch. 9.5 - Prob. 122PCh. 9.5 - The factor of safety for tipping of the concrete...Ch. 9.5 - Prob. 124PCh. 9.5 - The tank is used to store a liquid having a...Ch. 9.5 - Prob. 126PCh. 9.5 - Prob. 127PCh. 9.5 - Prob. 128PCh. 9.5 - Determine the magnitude of the resultant force...Ch. 9.5 - The semicircular drainage pipe is filled with...Ch. 9.5 - Prob. 1RPCh. 9.5 - Prob. 2RPCh. 9.5 - Prob. 3RPCh. 9.5 - Prob. 4RPCh. 9.5 - Prob. 5RPCh. 9.5 - Prob. 6RPCh. 9.5 - Prob. 7RPCh. 9.5 - Prob. 8RPCh. 9.5 - The gate AB is 8 m wide. Determine the horizontal...Ch. 9.5 - Prob. 10RP
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