Explanation Given Information: Specific gravity of the wood = 0.65 Length of the wood (AC) = 3 m AO = 1 m Cross section of the beam = 10x10 cm Buoyancy force = Weight of the wood For wood to float Moment about A = 0 Calculation: ∠ A B O = θ A B = A O sin θ = 1 sin θ B C = 3 − 1 sin θ V o l u m e o f t h e w o o d b l o c k = 3 × 0.1 × 0.1 = 0.03 m 3 W e i g h t o f t h e w o o d b l o c k = 0.03 × 0.65 × 1000 × 9.81 = 191.295 N C e n t r e o f g r a v i t y o f t h e w o o d b l o c k = 1.5 cos θ f r o m A C e n t r e o f b u o y a n c y f r o m A = ( 1.5 sin θ + 0

8th Edition

ISBN: 9780073398273

Author: Frank M. White

Publisher: McGraw-Hill Education

See similar textbooks

Videos

Question

Chapter 2, Problem 2.120P

To determine

The angle θ, so that wood block can float.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Chapter 2, Problem 2.119P

Chapter 2, Problem 2.121P

Students have asked these similar questions

This problem studies the response of two single degree of freedom bridge systems shown in Figure 1 under three loading cases. The problem has two parts. Part A and Part B use the same loading cases but the system is modified. Assume the following three loading cases in both Part A and Part B: (a) Harmonic wind load acting on the bridge deck pw(t) = powsin(ωwt) with amplitude pow and forcing circular frequency ωw. (b) Harmonic displacement base excitation acting at the base of the bridge pier ug(t) = ugosin(ωgt) with amplitude ugo and displacement circular frequency ωg. (c) Rectangular pulse load acting on the bridge deck with amplitude pop and pulse duration td. Part A The system includes part of a bridge deck and a bridge pier shown in Figure 1(a). For each loading case find the symbolic expression of the peak shear force in the bridge pier assuming the following: • The bridge deck is rigid and it has a mass m. • The bridge deck is rigidly connected with the bridge pier (i.e.,…

specific speed P #2 Q.2. A Pelton wheel turbine of 1.9 m diameter works under a head of 50 m at 150 rpm. The buckets are exposed to water jet which delivers from a nozzle of 20 cm in diameter. Find the overall efficiency power produced by the wheel if the buckets deflects the jet through an angle of 163°. coefficient of velocity as 0.98 [50 Marks] ·licosply Y and no Take the

d Q.2. A Pelton wheel has a mean bucket speed of 15 m/s. The jet of water issued from a nozzle of 12 cm in diameter impinges the bucket with a velocity of 40 m/s. If the buckets deflect the jet through an angle of 165°, find the head and power generated by the turbine. Assume the hydraulic efficiency is 90% and the mechanical efficiency is 85%. [50 Marks] Po 7n = 90%

Chapter 2 Solutions

Fluid Mechanics

Ch. 2 - Prob. 2.1P Ch. 2 - For the two-dimensional stress field shown in Fig....Ch. 2 - A vertical, clean, glass piezometer tube has an...Ch. 2 - P2.4 Pressure gages, such as the bourdon gage in...Ch. 2 - Quito, Ecuador, has an average altitude of 9350...Ch. 2 - Prob. 2.6P Ch. 2 - La Paz, Bolivia, is at an altitude of...Ch. 2 - P2.8 Suppose, which is possible, that there is a...Ch. 2 - A storage tank, 26 ft in diameter and 36 ft high,...Ch. 2 - P2.10 A large open tank is open to sea-level...

Ch. 2 - Prob. 2.11P Ch. 2 - Prob. 2.12P Ch. 2 - Prob. 2.13P Ch. 2 - Prob. 2.14P Ch. 2 - Prob. 2.15P Ch. 2 - Prob. 2.16P Ch. 2 - Prob. 2.17P Ch. 2 - The system in Fig. P2.18 is at 20°C. If...Ch. 2 - Prob. 2.19P Ch. 2 - The hydraulic jack in Fig. P2.20 is filled with...Ch. 2 - At 20°C gage A reads 350 kPa absolute. What is the...Ch. 2 - The fuel gage for a gasoline tank in a car reads...Ch. 2 - Prob. 2.23P Ch. 2 - Prob. 2.24P Ch. 2 - Prob. 2.25P Ch. 2 - Prob. 2.26P Ch. 2 - P2.27 Conduct an experiment to illustrate...Ch. 2 - Prob. 2.28P Ch. 2 - Prob. 2.29P Ch. 2 - Prob. 2.30P Ch. 2 - In Fig. P2.31 all fluids arc at 20°C. Determine...Ch. 2 - For the inverted manometer of Fig. P2.32, all...Ch. 2 - Prob. 2.33P Ch. 2 - Prob. 2.34P Ch. 2 - Water flows upward in a pipe slanted at 30°, as in...Ch. 2 - Prob. 2.36P Ch. 2 - Prob. 2.37P Ch. 2 - If the pressure in container A in Fig. P2.38 is...Ch. 2 - Prob. 2.39P Ch. 2 - Prob. 2.40P Ch. 2 - P2.41 The system in Fig. P2.41 is at 20°C....Ch. 2 - Prob. 2.42P Ch. 2 - Prob. 2.43P Ch. 2 - Prob. 2.44P Ch. 2 - Prob. 2.45P Ch. 2 - In Fig. P2.46 both ends of the manometer are open...Ch. 2 - Prob. 2.47P Ch. 2 - The system in Fig. P2.4H is open to 1 atm on the...Ch. 2 - Prob. 2.49P Ch. 2 - Prob. 2.50P Ch. 2 - Gate AB in Fig. P2.51 is 1.2 m long and 0.8 m into...Ch. 2 - Example 2.5 calculated the force on plate AB and...Ch. 2 - Prob. 2.53P Ch. 2 - Prob. 2.54P Ch. 2 - Gate AB in Fig. P2.55 is 5 ft wide into the paper,...Ch. 2 - Prob. 2.56P Ch. 2 - Prob. 2.57P Ch. 2 - Prob. 2.58P Ch. 2 - Gate AB has length L and width b into the paper,...Ch. 2 - Prob. 2.60P Ch. 2 - Gale AB in Fig. P2.61 is homogeneous mass of 180...Ch. 2 - Gale AB in Fig. P2.62 is 15 ft long and 8 ft wide...Ch. 2 - The tank in Fig. P2.63 has a 4-cm-diameter plug at...Ch. 2 - Prob. 2.64P Ch. 2 - Prob. 2.65P Ch. 2 - Prob. 2.66P Ch. 2 - Prob. 2.67P Ch. 2 - P2.68 Isosceles triangle gate AB in Fig. P2.68 is...Ch. 2 - P2.69 Consider the slanted plate AB of length L in...Ch. 2 - Prob. 2.70P Ch. 2 - Prob. 2.71P Ch. 2 - Prob. 2.72P Ch. 2 - P2.73 Gate AB is 5 ft wide into the paper and...Ch. 2 - Prob. 2.74P Ch. 2 - Prob. 2.75P Ch. 2 - Prob. 2.76P Ch. 2 - P2.77 The circular gate ABC in Fig. P2.77 has l-m...Ch. 2 - Prob. 2.78P Ch. 2 - Prob. 2.79P Ch. 2 - Prob. 2.80P Ch. 2 - Prob. 2.81P Ch. 2 - Prob. 2.82P Ch. 2 - Prob. 2.83P Ch. 2 - Prob. 2.84P Ch. 2 - P2.85 Compute the horizontal and vertical...Ch. 2 - Prob. 2.86P Ch. 2 - The bottle of champagne (SG = 0.96) in Fig. P2.87...Ch. 2 - Prob. 2.88P Ch. 2 - Prob. 2.89P Ch. 2 - The lank in Fig. P2.90 is 120 cm long into the...Ch. 2 - The hemispherical dome in Fig. P2.91 weighs 30 kN...Ch. 2 - A 4-m-diameter water lank consists of two half...Ch. 2 - Prob. 2.93P Ch. 2 - Prob. 2.94P Ch. 2 - Prob. 2.95P Ch. 2 - Prob. 2.96P Ch. 2 - Prob. 2.97P Ch. 2 - Prob. 2.98P Ch. 2 - The mega-magnum cylinder in Fig. P2.99 has a...Ch. 2 - Pressurized water fills the tank in Fig, P2.100....Ch. 2 - Prob. 2.101P Ch. 2 - Prob. 2.102P Ch. 2 - Prob. 2.103P Ch. 2 - Prob. 2.104P Ch. 2 - P2.105 it is said that Archimedes discovered the...Ch. 2 - Prob. 2.106P Ch. 2 - Prob. 2.107P Ch. 2 - P2.108 A 7-cm-diameter solid aluminum ball (SG =...Ch. 2 - Prob. 2.109P Ch. 2 - Prob. 2.110P Ch. 2 - P2.111 A solid wooden cone (SG = 0.729) floats in...Ch. 2 - The uniform 5-m-long round wooden rod in Fig....Ch. 2 - Prob. 2.113P Ch. 2 - Prob. 2.114P Ch. 2 - P2.115 The 2-in by 2-in by 12-ft spar buoy from...Ch. 2 - Prob. 2.116P Ch. 2 - The solid sphere in Fig. P2.117 is iron ( SG7.9 )....Ch. 2 - Prob. 2.118P Ch. 2 - Prob. 2.119P Ch. 2 - Prob. 2.120P Ch. 2 - Prob. 2.121P Ch. 2 - Prob. 2.122P Ch. 2 - Prob. 2.123P Ch. 2 - Prob. 2.124P Ch. 2 - Prob. 2.125P Ch. 2 - Prob. 2.126P Ch. 2 - Prob. 2.127P Ch. 2 - Prob. 2.128P Ch. 2 - Prob. 2.129P Ch. 2 - Prob. 2.130P Ch. 2 - Prob. 2.131P Ch. 2 - Prob. 2.132P Ch. 2 - Prob. 2.133P Ch. 2 - Prob. 2.134P Ch. 2 - P2.135 Consider a homogeneous right circular...Ch. 2 - Prob. 2.136P Ch. 2 - Prob. 2.137P Ch. 2 - Prob. 2.138P Ch. 2 - P2.139 The tank of liquid in Kg. P2.139...Ch. 2 - P2.140 The U-tube in Fig, P2.140 is moving to the...Ch. 2 - The same tank from Prob. P2.139 is now moving with...Ch. 2 - Prob. 2.142P Ch. 2 - Prob. 2.143P Ch. 2 - Prob. 2.144P Ch. 2 - A fish tank 14 in deep by 16 by 27 in is to be...Ch. 2 - Prob. 2.146P Ch. 2 - Prob. 2.147P Ch. 2 - Prob. 2.148P Ch. 2 - Prob. 2.149P Ch. 2 - Prob. 2.150P Ch. 2 - Prob. 2.151P Ch. 2 - P2.152 A 16-cm-diamctcr open cylinder 27 cm high...Ch. 2 - Prob. 2.153P Ch. 2 - Prob. 2.154P Ch. 2 - Prob. 2.155P Ch. 2 - Prob. 2.156P Ch. 2 - Prob. 2.157P Ch. 2 - Prob. 2.158P Ch. 2 - Prob. 2.159P Ch. 2 - Prob. 2.160P Ch. 2 - Prob. 2.161P Ch. 2 - Prob. 2.1WP Ch. 2 - Prob. 2.2WP Ch. 2 - W2.3 Consider a submerged curved surface that...Ch. 2 - Prob. 2.4WP Ch. 2 - Prob. 2.5WP Ch. 2 - W2.6 Consider a balloon of mass m floating...Ch. 2 - Prob. 2.7WP Ch. 2 - W2.8 Repeat your analysis of Prob. W2.7 to let the...Ch. 2 - Prob. 2.9WP Ch. 2 - Prob. 2.1FEEP Ch. 2 - FE2.2 On a sea-level standard day, a pressure...Ch. 2 - Prob. 2.3FEEP Ch. 2 - In Fig, FE2,3, if the oil in region B has SG = 0,8...Ch. 2 - Prob. 2.5FEEP Ch. 2 - Prob. 2.6FEEP Ch. 2 - Prob. 2.7FEEP Ch. 2 - Prob. 2.8FEEP Ch. 2 - Prob. 2.9FEEP Ch. 2 - Prob. 2.10FEEP Ch. 2 - Prob. 2.1CP Ch. 2 - Prob. 2.2CP Ch. 2 - Prob. 2.3CP Ch. 2 - Prob. 2.4CP Ch. 2 - Prob. 2.5CP Ch. 2 - Prob. 2.6CP Ch. 2 - Prob. 2.7CP Ch. 2 - Prob. 2.8CP Ch. 2 - Prob. 2.9CP Ch. 2 - Prob. 2.1DP Ch. 2 - Prob. 2.2DP Ch. 2 - The Leary Engineering Company (see Popular...

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.