EBK PHYSICS FOR SCIENTISTS & ENGINEERS
5th Edition
ISBN: 9780134296074
Author: GIANCOLI
Publisher: VST
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Textbook Question
Chapter 10, Problem 39P
(II) Assume that a 1.00-kg ball is thrown solely by the action of the forearm, which rotates about the elbow joint under the action of the triceps muscle, Fig. 10–52. The ball is accelerated uniformly from rest to 8.5 m/s in 0.35 s, at which point it is released. Calculate (a) the
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. (II) Assume that a 1.00-kg ball is thrown solely by the action of the forearm, which rotates about the elbow joint under the actionof the triceps muscle, Fig. 8–46. The ball is accelerated uniformlyfrom rest to 8.5 m/s in 0.38 s, at which point it is released. Calculate (a) the angular acceleration of the arm, and (b) the force required of the triceps muscle. Assume that the forearm has a mass of 3.7 kg and rotates like a uniform rod about an axis at its end.
(II) A potter is shaping a bowl on a potter's wheel rotating at
constant angular velocity of 1.6 rev/s (Fig. 8–48). The friction
force between her hands and the clay is 1.5 N total. (a) How
large is her torque on the wheel, if the diameter of the bowl
is 9.0 cm? (b) How long would it take for the potter's wheel
to stop if the only torque acting on it is due to the potter's
hands? The moment of inertia of the wheel and the bowl is
0.11 kg•m².
FIGURE 8–48
Problem 40.
A small mass m on a string is rotating without friction in acircle. The string is shortened by pulling it through the axisof rotation without any external torque, Fig. 8–39. Whathappens to the tangential velocity of the object?(a) It increases.(b) It decreases.(c) It remains the same.
Chapter 10 Solutions
EBK PHYSICS FOR SCIENTISTS & ENGINEERS
Ch. 10.1 - In Example 103, we found that the carousel, after...Ch. 10.4 - Two forces (FB = 20 N and FA = 30 N) are applied...Ch. 10.7 - In Figs. 1020f and g, the moments of inertia for a...Ch. 10.8 - Estimate the energy stored in the rotational...Ch. 10.9 - Return to the Chapter-Opening Question, p. 248,...Ch. 10.9 - Find the acceleration a of a yo-yo whose spindle...Ch. 10 - Prob. 1QCh. 10 - Suppose a disk rotates at constant angular...Ch. 10 - Could a nonrigid object be described by a single...Ch. 10 - Prob. 4Q
Ch. 10 - Prob. 5QCh. 10 - Prob. 6QCh. 10 - Can a small force ever exert a greater torque than...Ch. 10 - Why is it more difficult to do a sit-up with your...Ch. 10 - If the net force on a system is zero, is the net...Ch. 10 - Mammals that depend on being able to run fast have...Ch. 10 - Prob. 11QCh. 10 - Prob. 12QCh. 10 - Prob. 13QCh. 10 - Prob. 14QCh. 10 - Two inclines have the same height but make...Ch. 10 - Two spheres look identical and have the same mass....Ch. 10 - A sphere and a cylinder have the same radius and...Ch. 10 - Two solid spheres simultaneously start rolling...Ch. 10 - Prob. 1MCQCh. 10 - Prob. 2MCQCh. 10 - Prob. 3MCQCh. 10 - Prob. 4MCQCh. 10 - Prob. 6MCQCh. 10 - Prob. 7MCQCh. 10 - Prob. 8MCQCh. 10 - Prob. 9MCQCh. 10 - Prob. 10MCQCh. 10 - Prob. 11MCQCh. 10 - Prob. 12MCQCh. 10 - Prob. 14MCQCh. 10 - (I) Express the following angles in radians: (a)...Ch. 10 - Prob. 2PCh. 10 - Prob. 3PCh. 10 - (I) The blades in a blender rotate at a rate of...Ch. 10 - Prob. 5PCh. 10 - Prob. 6PCh. 10 - Prob. 7PCh. 10 - Prob. 8PCh. 10 - Prob. 9PCh. 10 - (II) A rotating merry-go-round makes one complete...Ch. 10 - Prob. 11PCh. 10 - Prob. 12PCh. 10 - (II) Calculate the angular velocity of the Earth...Ch. 10 - Prob. 14PCh. 10 - Prob. 15PCh. 10 - Prob. 16PCh. 10 - (II) A turntable of radius R1 is turned by a...Ch. 10 - Prob. 18PCh. 10 - (I) A centrifuge accelerates uniformly front rest...Ch. 10 - Prob. 20PCh. 10 - Prob. 21PCh. 10 - Prob. 22PCh. 10 - Prob. 23PCh. 10 - Prob. 24PCh. 10 - Prob. 25PCh. 10 - Prob. 26PCh. 10 - Prob. 27PCh. 10 - (II) Two blocks, each of mass m, are attached to...Ch. 10 - Prob. 29PCh. 10 - Prob. 30PCh. 10 - Prob. 31PCh. 10 - Prob. 32PCh. 10 - Prob. 33PCh. 10 - (I) Estimate the moment of inertia of a bicycle...Ch. 10 - Prob. 35PCh. 10 - (II) An oxygen molecule consists of two oxygen...Ch. 10 - Prob. 37PCh. 10 - (II) The forearm in Fig. 1052 accelerates a 3.6-kg...Ch. 10 - (II) Assume that a 1.00-kg ball is thrown solely...Ch. 10 - Prob. 40PCh. 10 - Prob. 41PCh. 10 - Prob. 42PCh. 10 - Prob. 43PCh. 10 - (II) A dad pushes tangentially on a small...Ch. 10 - Prob. 45PCh. 10 - Prob. 46PCh. 10 - Prob. 47PCh. 10 - Prob. 48PCh. 10 - (II) When discussing moments of inertia,...Ch. 10 - (II) Two blocks are connected by a light string...Ch. 10 - Prob. 51PCh. 10 - (III) A hammer thrower accelerates the hammer...Ch. 10 - (I) Use the parallel-axis theorem to show that the...Ch. 10 - (II) Determine the moment of inertia of a 19-kg...Ch. 10 - Prob. 55PCh. 10 - Prob. 56PCh. 10 - Prob. 57PCh. 10 - Prob. 58PCh. 10 - Prob. 61PCh. 10 - Prob. 62PCh. 10 - (I) Estimate the kinetic energy of the Earth with...Ch. 10 - (II) A rotating uniform cylindrical platform of...Ch. 10 - Prob. 65PCh. 10 - (II) A Uniform thin rod of length l and mass M is...Ch. 10 - Prob. 67PCh. 10 - (III) A 2.30-m-long pole is balanced vertically on...Ch. 10 - Prob. 69PCh. 10 - (I) A bowling ball of mass 7.3kg and radius 9.0 cm...Ch. 10 - Prob. 71PCh. 10 - (II) A narrow but solid spool of thread has radius...Ch. 10 - (II) A solid rubber ball rests on the floor of a...Ch. 10 - Prob. 74PCh. 10 - Prob. 75PCh. 10 - (II) A ball of radius r0 rolls on the inside of a...Ch. 10 - (III) A small sphere of radius r0 = 1.5 cm rolls...Ch. 10 - (III) A wheel with rotational inertia I=12MR2...Ch. 10 - (III) The 1100-kg mass of a car includes four...Ch. 10 - (I) A rolling hall slows down because the normal...Ch. 10 - Prob. 81GPCh. 10 - On a 12.0-cm-diameter audio compact disc (CD),...Ch. 10 - (a) A yo-yo is made of two solid cylindrical...Ch. 10 - Prob. 84GPCh. 10 - Prob. 85GPCh. 10 - A large spool of rope rolls on the ground with the...Ch. 10 - Bicycle gears: (a) How is the angular velocity R...Ch. 10 - Prob. 88GPCh. 10 - Figure 1065 illustrates an H2O molecule. The O H...Ch. 10 - Prob. 90GPCh. 10 - Prob. 91GPCh. 10 - Prob. 92GPCh. 10 - Prob. 93GPCh. 10 - Prob. 94GPCh. 10 - Prob. 96GPCh. 10 - A marble of mass m and radius r rolls along the...Ch. 10 - The density (mass per unit length) of a thin rod...Ch. 10 - If a billiard ball is hit in just the right way by...Ch. 10 - Prob. 100GPCh. 10 - When bicycle and motorcycle riders pop a wheelie,...Ch. 10 - A crucial part of a piece of machinery starts as a...Ch. 10 - Prob. 103GPCh. 10 - Prob. 104GPCh. 10 - Prob. 105GPCh. 10 - A thin uniform stick of mass M and length l is...Ch. 10 - Prob. 107GP
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- (II) Two masses, mA = 35.0 kg and mB = 38.0 kg, are connected by a rope that hangs over a pulley (as in Fig. 10-59). The pulley is a uniform cylinder of radius 0.381 m and mass 3.1 kg. Initially ma is on the ground and mB rests 2.5 m above the ground. If the system is released, use conservation of energy to deter- mine the speed of mB just before it strikes the ground. Assume the pulley bearing is frictionless. %3D RO mB mA 2.5 m FIGURE 10-59 ba Problem 67. inoni lo (IID) A.arrow_forward(II) A rotating uniform cylindrical platform of mass 220 kg and radius 5.5 m slows down from 3.8 rev/s to rest in 16 s when the driving motor is disconnected. Estimate the power output of the motor (hp) required to maintain a steady speed of 3.8 rev/s.arrow_forward(II) Calculate the angular velocity of the Earth (a) in itsorbit around the Sun, and (b) about its axisarrow_forward
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