Problem 1CQ: A rigid object rotates about a fixed axis. Do all points on the object have the same angular speed?... Problem 2CQ: Can you drive your car in such a way that your tangential acceleration is zero while at the same... Problem 3CQ: Can you drive your car in such a way that your tangential acceleration is nonzero while at the same... Problem 4CQ: The fact that the Earth rotates gives people in New York a linear speed of about 750 mi/h. Where... Problem 5CQ: At the local carnival you and a friend decide to take a ride on the Ferris wheel. As the wheel... Problem 6CQ: Why should changing the axis of rotation of an object change its moment of inertia, given that its... Problem 7CQ: Give a common, everyday example for each of the following: (a) An object that has zero rotational... Problem 8CQ: Two spheres have identical radii and masses How might you tell which of these spheres is hollow and... Problem 9CQ: At the grocery store you pick up a can of beef broth and a can of chunky beef stew. The cans are... Problem 10CQ: Suppose we change the race shown in Conceptual Example 10-17 so that a hoop of radius R and mass M... Problem 1PCE: The following angles are given in degrees. Convert them to radians 30, 45, 90, 180 Problem 2PCE: The following angles are given in radians. Convert them to degrees, /6, 0.7, 1.5, 5. Problem 3PCE: Express the angular velocity of the second hand on a clock in the following units: (a) rev/h (b)... Problem 4PCE: Rank the following in order of increasing angular speed: an automobile tire rotating at 2.00 103... Problem 5PCE: A spot of paint on a bicycle tire moves in a circular path of radius 0.29 m When the spot has... Problem 6PCE: The Crab Nebula One of the most studied objects in the night sky is the Crab nebula, the remains of... Problem 7PCE: BIO Hummingbird Flapping The Ruby-throated Hummingbird (Archilochus colubris) can flap its wings... Problem 8PCE: The following table gives the angular speed of a rotating fan blade at various times as it slows to... Problem 9PCE: Four objects, a, b, c, and d have the initial angular velocities and angular accelerations given in... Problem 10PCE: Predict/Calculate A 3.5-inch floppy disk in a computer rotates with a period of 2.00 101 s. What... Problem 11PCE: The angle an airplane propeller makes with the horizontal as a function of time is given by =... Problem 12PCE: An object at rest begins to rotate with a constant angular acceleration. If this object rotates... Problem 13PCE: An object at rest begins to rotate with a constant angular acceleration If the angular speed of the... Problem 14PCE: The angular speed of a propeller on a boat increases with constant acceleration from 11 rad/s to 39... Problem 15PCE: After fixing a flat tire on a bicycle you give the wheel a spin (a) If its initial angular speed was... Problem 16PCE: Predict/Calculate A ceiling fan is rotating at 0 96 rev/s. When turned off, it slows uniformly to a... Problem 17PCE: A discus thrower starts from rest and begins to rotate with a constant angular acceleration of 2.2... Problem 18PCE: Half Time At 3:00 the hour hand and the minute hand of a clock point in directions that are 90.0... Problem 19PCE: BIO A centrifuge is a common laboratory instrument that separates components of differing densities... Problem 20PCE: The Slowing Earth The Earth's rate of rotation is constantly decreasing, causing the day to increase... Problem 21PCE: When a carpenter shuts off his circular saw the 10.0-inch-diameter blade slows from 3084 rpm to 0 in... Problem 22PCE: The Worlds Fastest Turbine The drill used by most dentists today is powered by a small air turbine... Problem 23PCE: Predict/Explain Two children. Jason and Betsy ride on the same merry-go-round. Jason is a distance R... Problem 24PCE: The hour hand on a certain clock is 8.2 cm long. Find the tangential speed of the tip of this hand. Problem 25PCE: The outer edge of a rotating Frisbee with a diameter of 29 cm has a linear speed of 3 7 m/s. What is... Problem 26PCE: A carousel at the local carnival rotates once every 45 seconds (a) What is the linear speed of an... Problem 27PCE: A chainsaw is shown in Figure 10-27. When the saw is in operation, the chain moves with a linear... Problem 28PCE: Predict/Calculate Jeff of the Jungle swings on a vine that is 7.20 m long (Figure 10-28). At the... Problem 29PCE: A compact disk, which has a diameter of 12.0 cm, speeds up uniformly from 0.00 to 4.00 rev/s in 3 00... Problem 30PCE: Predict/Calculate When a compact disk with a 12.0-cm diameter is rotating at 34.6 rad/s what are (a)... Problem 31PCE: Predict/Calculate As Tony the fisherman reels in a "big one, he turns the spool on his fishing reel... Problem 32PCE: A Ferns wheel with a radius of 9.5 m rotates at a constant rate, completing one revolution every 36... Problem 33PCE: Suppose the Ferris wheel in the previous problem begins to decelerate at the rate of 0.22 rad/s:... Problem 34PCE: To polish a filling a dentist attaches a sanding disk with a radius of 3.20 mm to the drill (a) When... Problem 35PCE: The Bohr Atom The Bohr model or me hydrogen atom pictures the electron as a tiny panicle moving m a... Problem 36PCE: A wheel of radius R starts from rest and accelerates with a constant angular acceleration a about a... Problem 37PCE: Microwave Tray Most microwave ovens nave a glass tray that sits on top of a circular ring with three... Problem 38PCE: The tires on a car have a radius of 31 cm. What is the angular speed of these tires when the car is... Problem 39PCE: A child pedals a tricycle, giving the driving wheel an angular speed or = 0.875 rev/s (Figure... Problem 40PCE: A soccer ball, which has a circumference of 70.0 cm, rolls 14.0 yards in 3.35 s. What was the... Problem 41PCE: You drive down the road at 31 m/s (70 mi/h) in a car whose tires have a radius of 34 cm. (a) What is... Problem 42PCE: The wheels of a skateboard roll without slipping as it accelerates at 0 35 m/s2 down an 85-m- long... Problem 43PCE: The page feed roller of a computer printer grips each 11.inch-long sheet of paper and feeds it... Problem 44PCE: As you drive down the road at 17 m/s, you press on the gas pedal and speed up with a uniform... Problem 45PCE: Predict/Explain The minute and hour hands of a clock have a common axis of rotation and equal mass.... Problem 46PCE: Predict/Explain Suppose a bicycle wheel is rotated about an axis through its rim and parallel to its... Problem 47PCE: The moment of inertia of a 0.98-kg bicycle wheel rotating about its center is 0.13 kg m2. What is... Problem 48PCE: An electric fan spinning with an angular speed of 13 rad/s has a kinetic energy of 4.6 J. What is... Problem 49PCE: BIO Spin-Dry Dragonflies Some dragonflies splash down onto the surface of a lake to clean... Problem 50PCE: The L-shaped object in Figure 10-32 can be rotated in one of the following three ways: case 1,... Problem 51PCE: Predict/Calculate A 12-g CD with a radius of 6 0 cm rotates with an angular speed of 34 rad/s (a)... Problem 52PCE: The engine of a model airplane must both spin a propeller and push air backward to propel the... Problem 53PCE: Flywheel Energy Storage One way to store energy is in the rotational motion of a flywheel, and some... Problem 54PCE: When a pitcher throws a curve ball, the ball is given a fairly rapid spin. If a 0.15-kg baseball... Problem 55PCE: A lawn mower has a flat, rod shaped steel blade that rotates about its center The mass of the blade... Problem 56PCE Problem 57PCE: Suppose the block in Example 10-19 has a mass of 2.1 kg and an initial upward speed of 0.33 m/s Find... Problem 58PCE: Calculate the speeds of (a) the disk and (b) the hoop at the bottom of the inclined plane in... Problem 59PCE: Predict/Calculate Atwoods Machine The two masses {m1 = 5.0 kg and m2 = 3.0 kg ) in the Atwood s... Problem 60PCE: In Conceptual Example 10 18, assume the ball is a solid sphere of radius 2.9 cm and mass 0.14 kg if... Problem 61PCE: Predict/Calculate After you pick up a spare, your bowling ball rolls without slipping back toward... Problem 62PCE: Predict/Calculate A 1 3-kg block is tied to a string that is wrapped around the rim of a pulley of... Problem 63PCE: After doing some exercises on the floor you are lying on your back with one leg pointing straight... Problem 64PCE: A 2.0-kg solid cylinder (radius = 0.10 m, length = 0.50 m) is released from rest at the top of a... Problem 65PCE: A 2 5-kg solid sphere (radius = 0.10 m) is released from rest at the top of a ramp and allowed to... Problem 66GP: CE As you switch a fan setting from its slowest speed to its highest, its angular speed triples.... Problem 67GP: CE When you stand on the observation deck of the Empire State Building in New York, is your linear... Problem 68GP: What linear speed must a 0.065-kg hula hoop have it its total kinetic energy is to be 0.12 J? Assume... Problem 69GP: BIO Losing Consciousness A pilot performing a horizontal turn will lose consciousness if she... Problem 70GP: The angular velocity of a rotating wheel as a function of time is shown in the graph in Figure... Problem 71GP: A 68-kg commuter rides on an 8.1 -kg bicycle. Each bicycle wheel is a hoop of radius 33 cm and mass... Problem 72GP: CE Place two quarters on a table with their rims touching, as shown in Figure 10-37. While holding... Problem 73GP: CE The object shown in Figure 10-38 can be rotated in three different ways case 1, rotation about... Problem 74GP: Predict/Calculate When the Hands Align A mathematically inclined friend e-mails you the following... Problem 75GP: BIO Spinning Dragonflies Measurements show that when a dragonfly does a spin dry (Problem 49), it... Problem 76GP: Predict/Calculate A potters wheel of radius 6.8 cm rotates with a period of 0.52 s. What are (a) the... Problem 77GP: Predict/Calculate Playing a CD The record m an old-fashioned record player always rotates at the... Problem 78GP: BIO Roller Pigeons Pigeons are bred to display a number of interesting characteristics One breed of... Problem 79GP: BIO Dolphin Tricks A bottlenose dolphin (Tursiops truncates) is about 2.5 m long and has a mass of... Problem 80GP: As a marble with a diameter of 1 6 cm rolls down an incline, its center moves with a linear... Problem 81GP: A rubber ball with a radius of 3.2 cm rolls along the horizontal surface of a table with a constant... Problem 82GP: Predict/Calculate A yo-yo moves downward until it reaches the end of its string, where it sleeps. As... Problem 83GP: Predict/Calculate (a) An automobile with tires or radius 32 cm accelerates from 0 to 45 mph in 9.1... Problem 84GP: A Yo-Yo with a Brain Yomega (The yo-yo with a brain) is constructed with a clever clutch mechanism... Problem 85GP: The rotor in a centrifuge has an initial angular speed of 430 rad/s. After 8 2 s of constant angular... Problem 86GP: The Sun, with Earth in tow, orbits about the center of the Milky Way galaxy at a speed of 137 miles... Problem 87GP: A person walks into a room and switches on the ceiling fan. The fan accelerates with constant... Problem 88GP: BIO Preventing Bone Loss in Space When astronauts return from prolonged space flights, they often... Problem 89GP: A thin, uniform rod of length L and mass M is pivoted about one end as shown in Figure 10-40. The... Problem 90GP: Center of Percussion In the previous problem, suppose a small metal ball of mass m = 2M is attached... Problem 91GP: A wooden plank rests on two soup cans laid on their sides. Each can has a diameter of 6.5 cm, and... Problem 92GP: A person rides on a 12-m-diameter Ferris wheel that rotates at the constant rate of 8.1 rpm.... Problem 93GP: Predict/Calculate A solid sphere with a diameter of 0.17 m is released from rest; it then rolls... Problem 94PP: BIO Human-Powered Centrifuge Space travel is fraught with hazards, not the least of which are the... Problem 95PP: BIO Human-Powered Centrifuge Space travel is fraught with hazards, not the least of which are the... Problem 96PP: BIO Human-Powered Centrifuge Space travel is fraught with hazards, not the least of which are the... Problem 97PP: BIO Human-Powered Centrifuge Space travel is fraught with hazards, not the least of which are the... Problem 98PP: Referring to Conceptual Example 10-17 Suppose we race a disk and a hollow spherical shell, like a... Problem 99PP: Referring to Conceptual Example 10-17 Consider a race between the following three objects: object 1,... format_list_bulleted