Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN: 9781305387102
Author: Kreith, Frank; Manglik, Raj M.
Publisher: Cengage Learning
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Chapter 2, Problem 2.31P
A hollow sphere with inner and outer radii of
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Problem 3.
1.5 m
B
PROBLEM 16.121
End A of the 6-kg uniform rod AB rests on the inclined surface, while end B is
attached to a collar of negligible mass which can slide along the vertical rod
shown. Knowing that the rod is released from rest when = 35° and neglecting the
effect of friction, determine immediately after release (a) the angular acceleration
of the rod, (b) the reaction at B.
25°
Problem 1. End A of the uniform 5-kg bar is pinned freely to the collar, which has an acceleration
a = 4 m/s² along the fixed horizontal shaft. If the bar has a clockwise angular velocity @ = 2 rad/s
as it swings past the vertical, determine the components of the force on the bar at A for this instant.
Answers: Ax = 5 N, Ay = 57.1 N
L
X
AO
0.8 m
@
a
=
MMB 241- Tutorial 1.pdf
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MMB 241 - Dynamics of Particles
Tutorial 1
Topic: Kinematics of Particles:- Displacement, velocity and acceleration of particles.
QUESTIONS
1. If v = (4t+5) m/s, where t is in seconds, determine a when t = 2 s.
2. If s = (2t³) m, where t is in seconds, determine v when t = 2 s.
3. If a = 2 m/s², determine v at s = 4 m if v = 3 m/s at s = 0.
4. If a = 4 m/s², determines when t = 3 s if v = 2 m/s and s = 2 m when t=0.
5. A particle moves along a straight line such that its position is defined by s = (t² - 6t + 5) m.
Determine the average velocity, the average speed, and the acceleration of the particle
when t = 6 s.
6. A particle is moving with a velocity of vo when s=0 and t=0. If it is subjected to a
deceleration of a = -kv³ where k is a constant, determine its velocity and position as
functions of time.
7. A particle travels along a straight-line path such that in 4s it moves from an initial position
SA = -8 m to a position SB = +3 m. Then in…
Chapter 2 Solutions
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
Ch. 2 - A plane wall, 7.5 cm thick, generates heat...Ch. 2 -
2.2 A small dam, which is idealized by a large...Ch. 2 - 2.3 The shield of a nuclear reactor is idealized...Ch. 2 - A plane wall 15 cm thick has a thermal...Ch. 2 - 2.5 Derive an expression for the temperature...Ch. 2 - A plane wall of thickness 2L has internal heat...Ch. 2 - 2.7 A very thin silicon chip is bonded to a 6-mm...Ch. 2 - 2.9 In a large chemical factory, hot gases at 2273...Ch. 2 - 2.14 Calculate the rate of heat loss per foot and...Ch. 2 - 2.15 Suppose that a pipe carrying a hot fluid with...
Ch. 2 - Prob. 2.16PCh. 2 - Estimate the rate of heat loss per unit length...Ch. 2 - The rate of heat flow per unit length q/L through...Ch. 2 - A 2.5-cm-OD, 2-cm-ID copper pipe carries liquid...Ch. 2 - A cylindrical liquid oxygen (LOX) tank has a...Ch. 2 - Show that the rate of heat conduction per unit...Ch. 2 - Derive an expression for the temperature...Ch. 2 - Heat is generated uniformly in the fuel rod of a...Ch. 2 - 2.29 In a cylindrical fuel rod of a nuclear...Ch. 2 - 2.30 An electrical heater capable of generating...Ch. 2 - A hollow sphere with inner and outer radii of R1...Ch. 2 - 2.34 Show that the temperature distribution in a...Ch. 2 -
2.38 The addition of aluminum fins has been...Ch. 2 - The tip of a soldering iron consists of a 0.6-cm-...Ch. 2 - One end of a 0.3-m-long steel rod is connected to...Ch. 2 - Both ends of a 0.6-cm copper U-shaped rod are...Ch. 2 - 2.42 A circumferential fin of rectangular cross...Ch. 2 - 2.43 A turbine blade 6.3 cm long, with...Ch. 2 - 2.44 To determine the thermal conductivity of a...Ch. 2 - 2.45 Heat is transferred from water to air through...Ch. 2 - 2.46 The wall of a liquid-to-gas heat exchanger...Ch. 2 - Prob. 2.47PCh. 2 - The handle of a ladle used for pouring molten lead...Ch. 2 - 2.50 Compare the rate of heat flow from the bottom...Ch. 2 - 2.51 Determine by means of a flux plot the...Ch. 2 - Prob. 2.52PCh. 2 - Determine the rate of heat transfer per meter...Ch. 2 - Prob. 2.54PCh. 2 - 2.55 A long, 1-cm-diameter electric copper cable...Ch. 2 - Prob. 2.56PCh. 2 - Prob. 2.57PCh. 2 - Prob. 2.58P
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