University Physics Volume 1
18th Edition
ISBN: 9781938168277
Author: William Moebs, Samuel J. Ling, Jeff Sanny
Publisher: OpenStax - Rice University
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Chapter 11, Problem 83AP
A 4.0-kg particle moves in a circle of radius 2.0 m. The
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Chapter 11 Solutions
University Physics Volume 1
Ch. 11 - Check Your Understanding A hollow cylinder is on...Ch. 11 - Check Your Understanding A proton spiraling around...Ch. 11 - Check Your Understanding Which has greater angular...Ch. 11 - Check Your Understanding A merry-go-round at a...Ch. 11 - Check Your Understanding A top has a precession...Ch. 11 - Can a round object released from rest at the top...Ch. 11 - A cylindrical can of radius R is rolling across a...Ch. 11 - A wheel is released from the top on an incline. Is...Ch. 11 - Which rolls down an inclined plane faster, a...Ch. 11 - A hollow sphere and a hollow cylinder of the same...
Ch. 11 - Can you assign an angular momentum to a particle...Ch. 11 - For a particle traveling in a straight line, are...Ch. 11 - Under what conditions does a rigid body have...Ch. 11 - If a particle is moving with respect to a chosen...Ch. 11 - If you know the velocity of a particle, can you...Ch. 11 - What is the purpose of the small propeller at the...Ch. 11 - Suppose a child walks from the outer edge of a...Ch. 11 - As the rope of a tethered ball winds around a...Ch. 11 - Suppose the polar ice sheets broke free and...Ch. 11 - Explain why stars spin faster when they collapse.Ch. 11 - Competitive divers pull their limbs in and curl up...Ch. 11 - Gyroscopes used in guidance systems to indicate...Ch. 11 - Earth precesses about its vertical axis with a...Ch. 11 - What is the angular velocity of a 75.0-cm-diameter...Ch. 11 - A boy rides his bicycle 2.00 km. The wheels have...Ch. 11 - If the boy on the bicycle in the preceding problem...Ch. 11 - Formula One race cars have 66-cm-diameter tires....Ch. 11 - A marble rolls down an incline at 30 from rest....Ch. 11 - Repeat the preceding problem replacing the marble...Ch. 11 - A rigid body with a cylindrical cross-section is...Ch. 11 - A yo-yo can be thought of a solid cylinder of mass...Ch. 11 - A solid cylinder of radius 10.0 cm rolls down an...Ch. 11 - A bowling ball rolls up a ramp 0.5 m high without...Ch. 11 - A 40.0-kg solid cylinder is rolling across a...Ch. 11 - A 40.0-kg solid sphere is rolling across a...Ch. 11 - A solid cylinder rolls up an incline at an angle...Ch. 11 - A solid cylindrical wheel of mass M and radius R...Ch. 11 - A hollow cylinder that is rolling without slipping...Ch. 11 - A 0.2-kg particle is travelling along the line...Ch. 11 - A bird flies overhead from where you stand at an...Ch. 11 - A Formula One race car with mass 750.0 kg is...Ch. 11 - A particle of mass 5.0 kg has position vector at a...Ch. 11 - Use the right-hand rule to determine the...Ch. 11 - Suppose the particles in the preceding problem...Ch. 11 - Two particles of equal mass travel with the same...Ch. 11 - An airplane of mass 4.0104kg flies horizontally at...Ch. 11 - At a particular instant, a 1.0-kg particle’s...Ch. 11 - Prob. 43PCh. 11 - (a) Calculate the angular momentum of Earth in its...Ch. 11 - A boulder of mass 20 kg and radius 20 cm rolls...Ch. 11 - A satellite is spinning at 6.0 rev/s. The...Ch. 11 - A propeller consists of two blades each 3.0 m in...Ch. 11 - A pulsar is a rapidly rotating neutron star. The...Ch. 11 - The blades of a wind turbine are 30 m in length...Ch. 11 - A roller coaster has mass 3000.0 kg and needs to...Ch. 11 - A mountain biker takes a jump in a race and goes...Ch. 11 - Conservation of Angular Momentum 52.A disk of mass...Ch. 11 - The Sun’s mass is 2.01030kg , its radius is...Ch. 11 - A cylinder with rotational inertia I1=2.0kgm2...Ch. 11 - A diver off the high board imparts an initial...Ch. 11 - An Earth satellite has its apogee at 2500 km above...Ch. 11 - A Molniya orbit is a highly eccentric orbit of a...Ch. 11 - Shown below is a small particle of mass 20 g that...Ch. 11 - A bug of mass 0.020 kg is at rest on the edge of a...Ch. 11 - A uniform rod of mass 200 g and length 100 cm is...Ch. 11 - A merry-go-round has a radius of 2.0 m and a...Ch. 11 - A playground merry-go-round has a mass of 120 kg...Ch. 11 - Three children are riding on the edge of a...Ch. 11 - (a) Calculate the angular momentum of an ice...Ch. 11 - Twin skaters approach one another as shown below...Ch. 11 - A baseball catcher extends his arm straight up to...Ch. 11 - In 2015, in Warsaw, Poland, Olivia Oliver of Nova...Ch. 11 - A satellite in a geosynchronous circular orbit is...Ch. 11 - A gymnast does cartwheels along the floor and then...Ch. 11 - The centrifuge at NASA Ames Research Center has a...Ch. 11 - A ride at a carnival has four spokes to which pods...Ch. 11 - An ice skater is preparing for a jump with turns...Ch. 11 - A space station consists of a giant rotating...Ch. 11 - Neptune has a mass of 1.01026kg and is 4.5109km...Ch. 11 - A gyroscope has a 0.5-kg disk that spins at 40...Ch. 11 - The precession angular velocity of a gyroscope is...Ch. 11 - The axis of Earth makes a 23.5 angle with a...Ch. 11 - A marble is rolling across the floor at a speed of...Ch. 11 - Repeat the preceding problem replacing the marble...Ch. 11 - The mass of a hoop of radius 1.0 m is 6.0 kg. It...Ch. 11 - Repeat the preceding problem for a hollow sphere...Ch. 11 - A particle has mass 0.5 kg and is traveling along...Ch. 11 - A 4.0-kg particle moves in a circle of radius 2.0...Ch. 11 - A proton is accelerated in a cyclotron to...Ch. 11 - (a) What is the angular momentum of the Moon in...Ch. 11 - A DVD is rotating at 500 rpm. What is the angular...Ch. 11 - A potter’s disk spins from rest up to 10 rev/s in...Ch. 11 - Suppose you start an antique car by exerting a...Ch. 11 - A solid cylinder of mass 2.0 kg and radius 20 cm...Ch. 11 - A boy stands at the center of a platform that is...Ch. 11 - Eight children each of mass 40 kg, climb on a...Ch. 11 - A thin meter stick of mass 150 g rotates around an...Ch. 11 - A satellite in the shape of a sphere of mass...Ch. 11 - A top has moment of inertia 3.2104kgm2 and radius...Ch. 11 - The truck shown below is initially at rest with...Ch. 11 - A bowling ball of radius 8.5 cm is tossed onto a...Ch. 11 - A small ball of mass 0.50 kg is attached by a...Ch. 11 - A bug flying horizontally at 1.0 m/s collides and...
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- The de-excitation of a state occurs by competing emission and relaxation processes. If the relaxation mechanisms are very effective:a) the emission of radiation is largeb) the emission of radiation is smallc) the emission occurs at a shorter wavelengthd) the de-excitation occurs only by emission processesarrow_forwardm C A block of mass m slides down a ramp of height hand collides with an identical block that is initially at rest. The two blocks stick together and travel around a loop of radius R without losing contact with the track. Point A is at the top of the loop, point B is at the end of a horizon- tal diameter, and point C is at the bottom of the loop, as shown in the figure above. Assume that friction between the track and blocks is negligible. (a) The dots below represent the two connected blocks at points A, B, and C. Draw free-body dia- grams showing and labeling the forces (not com ponents) exerted on the blocks at each position. Draw the relative lengths of all vectors to reflect the relative magnitude of the forces. Point A Point B Point C (b) For each of the following, derive an expression in terms of m, h, R, and fundamental constants. i. The speed of moving block at the bottom of the ramp, just before it contacts the stationary block ii. The speed of the two blocks immediately…arrow_forwardThe velocity of an elevator is given by the graph shown. Assume the positive direction is upward. Velocity (m/s) 3.0 2.5 2.0 1.5 1.0 0.5 0 0 5.0 10 15 20 25 Time (s) (a) Briefly describe the motion of the elevator. Justify your description with reference to the graph. (b) Assume the elevator starts from an initial position of y = 0 at t=0. Deriving any numerical values you need from the graph: i. Write an equation for the position as a function of time for the elevator from t=0 to t = 3.0 seconds. ii. Write an equation for the position as a function of time for the elevator from t = 3.0 seconds to t = 19 seconds. (c) A student of weight mg gets on the elevator and rides the elevator during the time interval shown in the graph. Consider the force of con- tact, F, between the floor and the student. How Justify your answer with reference to the graph does F compare to mg at the following times? and your equations above. i. = 1.0 s ii. = 10.0 sarrow_forward
- Students are asked to use circular motion to measure the coefficient of static friction between two materials. They have a round turntable with a surface made from one of the materials, for which they can vary the speed of rotation. They also have a small block of mass m made from the sec- ond material. A rough sketch of the apparatus is shown in the figure below. Additionally they have equipment normally found in a physics classroom. Axis m (a) Briefly describe a procedure that would allow you to use this apparatus to calculate the coefficient of static friction, u. (b) Based on your procedure, determine how to analyze the data collected to calculate the coefficient of friction. (c) One group of students collects the following data. r (m) fm (rev/s) 0.050 1.30 0.10 0.88 0.15 0.74 0.20 0.61 0.25 0.58 i. Use the empty spaces in the table as needed to calculate quantities that would allow you to use the slope of a line graph to calculate the coefficient of friction, providing labels with…arrow_forwardPART Aarrow_forwardanswer both questionarrow_forward
- Only part A.) of the questionarrow_forwardIn general it is best to conceptualize vectors as arrows in space, and then to make calculations with them using their components. (You must first specify a coordinate system in order to find the components of each arrow.) This problem gives you some practice with the components. Let vectors A = (1,0, -3), B = (-2, 5, 1), and C = (3,1,1). Calculate the following, and express your answers as ordered triplets of values separated by commas.arrow_forwardIn general it is best to conceptualize vectors as arrows in space, and then to make calculations with them using their components. (You must first specify a coordinate system in order to find the components of each arrow.) This problem gives you some practice with the components. Let vectors A = (1,0, −3), B = (-2, 5, 1), and C = (3,1,1). Calculate the following, and express your answers as ordered triplets of values separated by commas.arrow_forward
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