Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN: 9781133939146
Author: Katz, Debora M.
Publisher: Cengage Learning
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Chapter 6, Problem 49PQ
Artificial gravity is produced in a space station by rotating it, so it is a noninertial reference frame. The rotation means that there must be a
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Chapter 6 Solutions
Physics for Scientists and Engineers: Foundations and Connections
Ch. 6.1 - CASE STUDY Skydiving Arguments Take a moment to...Ch. 6.3 - A box rests on a steel surface. Four sides of the...Ch. 6.3 - Prob. 6.3CECh. 6.4 - Imagine trying to push a heavy sofa across the...Ch. 6.4 - Prob. 6.5CECh. 6.4 - Prob. 6.6CECh. 6.4 - What forces act on you as you walk across a room?...Ch. 6.5 - Figure 6.20 shows four objects moving downward....Ch. 6.5 - Prob. 6.9CECh. 6.5 - Prob. 6.10CE
Ch. 6.6 - The following objects are moving in uniform...Ch. 6 - In many textbook problems, we ignore certain...Ch. 6 - Prob. 2PQCh. 6 - Prob. 3PQCh. 6 - Prob. 4PQCh. 6 - Prob. 5PQCh. 6 - Draw a free-body diagram for the burglar, who is...Ch. 6 - The shower curtain rod in Figure P6.7 is called a...Ch. 6 - A rectangular block has a length that is five...Ch. 6 - A man exerts a force of 16.7 N horizontally on a...Ch. 6 - A makeshift sign hangs by a wire that is extended...Ch. 6 - In Problem 10, the mass of the sign is 25.4 kg,...Ch. 6 - Prob. 12PQCh. 6 - A motorcyclist is traveling at 55.0 mph on a flat...Ch. 6 - A small steel I-beam (Fig. P6.14) is at rest with...Ch. 6 - A box is at rest with respect to the surface of a...Ch. 6 - A filled treasure chest of mass m with a long rope...Ch. 6 - A filled treasure chest (m = 375 kg) with a long...Ch. 6 - Rochelle holds her 2.80-kg physics textbook by...Ch. 6 - Prob. 19PQCh. 6 - A sled and rider have a total mass 56.8 kg. They...Ch. 6 - Prob. 21PQCh. 6 - Prob. 22PQCh. 6 - Prob. 23PQCh. 6 - Lisa measured the coefficient of static friction...Ch. 6 - An ice cube with a mass of 0.0507 kg is placed at...Ch. 6 - Prob. 26PQCh. 6 - Curling is a game similar to lawn bowling except...Ch. 6 - Prob. 28PQCh. 6 - A sled and rider have a total mass of 56.8 kg....Ch. 6 - A sled and rider have a total mass of 56.8 kg....Ch. 6 - A cart and rider have a total mass of 56.8 kg. The...Ch. 6 - Prob. 32PQCh. 6 - Prob. 33PQCh. 6 - Prob. 34PQCh. 6 - Prob. 35PQCh. 6 - Prob. 36PQCh. 6 - A racquetball has a radius of 0.0285 m. The drag...Ch. 6 - Prob. 38PQCh. 6 - Prob. 39PQCh. 6 - Prob. 40PQCh. 6 - An inflated spherical beach ball with a radius of...Ch. 6 - CASE STUDY In the train collision case study...Ch. 6 - Your sailboat has capsized! Fortunately, you are...Ch. 6 - Prob. 44PQCh. 6 - The drag coefficient C in FD=12CAv2 (Eq. 6.5)...Ch. 6 - Prob. 46PQCh. 6 - The speed of a 100-g toy car at the bottom of a...Ch. 6 - Prob. 48PQCh. 6 - Artificial gravity is produced in a space station...Ch. 6 - Escaping from a tomb raid gone wrong, Lara Croft...Ch. 6 - Harry Potter decides to take Pottery 101 as an...Ch. 6 - Harry sets some clay (m = 3.25 kg) on the edge of...Ch. 6 - A small disk of mass m is attached by a rope to a...Ch. 6 - Prob. 54PQCh. 6 - Prob. 55PQCh. 6 - Prob. 56PQCh. 6 - When a star dies, much of its mass may collapse...Ch. 6 - A satellite of mass 16.7 kg in geosynchronous...Ch. 6 - Banked curves are designed so that the radial...Ch. 6 - A block lies motionless on a horizontal tabletop....Ch. 6 - A car with a mass of 1453 kg is rolling along a...Ch. 6 - Prob. 62PQCh. 6 - Prob. 63PQCh. 6 - A box rests on a surface (Fig. P6.64). A force...Ch. 6 - A box of mass m rests on a rough, horizontal...Ch. 6 - A cylinder of mass M at rest on the end of a...Ch. 6 - Problems 67. 70. 71. and 72 are grouped. A A block...Ch. 6 - Instead of moving back and forth, a conical...Ch. 6 - Prob. 69PQCh. 6 - A Suppose you place a block of mass M on a plane...Ch. 6 - Prob. 71PQCh. 6 - Prob. 72PQCh. 6 - A car is driving around a flat, circularly curved...Ch. 6 - Prob. 74PQCh. 6 - Two children, with masses m1 = 35.0 kg and m2 =...Ch. 6 - Chris, a recent physics major, wanted to design...Ch. 6 - Prob. 77PQCh. 6 - Prob. 78PQCh. 6 - The radius of circular electron orbits in the Bohr...Ch. 6 - A particle of dust lands 45.0 mm from the center...Ch. 6 - Since March 2006, NASAs Mars Reconnaissance...
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- A bicycle is turned upside down while its owner repairs a flat tire. A friend spins the other wheel and observes that drops of water fly off tangentially. She measures the heights reached by drops moving vertically (Fig. P7.8). A drop that breaks loose from the tire on one turn rises vertically 54.0 cm above the tangent point. A drop that breaks loose on the next turn rises 51.0 cm above the tangent point. The radius of the wheel is 0.381 m. (a) Why does the first drop rise higher than the second drop? (b) Neglecting air friction and using only the observed heights and the radius of the wheel, find the wheels angular acceleration (assuming it to be constant). Figure P7.8 Problems 8 and 69.arrow_forwardSuppose the gravitational acceleration at the surface of a certain moon A of Jupiter is 2 m/s2. Moon B has twice the mass and twice the radius of moon A. What is the gravitational acceleration at its surface? Neglect the gravitational acceleration due to Jupiter, (a) 8 m/s2 (b) 4 m/s2 (c) 2 m/s2 (d) 1 m/s2 (e) 0.5 m/s2arrow_forwardModel the Moons orbit around the Earth as an ellipse with the Earth at one focus. The Moons farthest distance (apogee) from the center of the Earth is rA = 4.05 108 m, and its closest distance (perigee) is rP = 3.63 108 m. a. Calculate the semimajor axis of the Moons orbit. b. How far is the Earth from the center of the Moons elliptical orbit? c. Use a scale such as 1 cm 108 m to sketch the EarthMoon system at apogee and at perigee and the Moons orbit. (The semiminor axis of the Moons orbit is roughly b = 3.84 108 m.)arrow_forward
- Sophia is playing with a set of wooden toys, rolling them offthe table and onto the floor. One of the toys is a small spherewith a mass of 0.024 kg and a radius of 0.020 m, and another isa small cylinder that also has a mass of 0.024 kg but a radius of0.013 m. She rolls each toy so that it has the same translationalspeed of 0.40 m/s. How much greater is the kinetic energy ofthe cylinder than the kinetic energy of the sphere?arrow_forwardA single bead can slide with negligible friction on a stiff wire that has been bent into a circular loop of radius 15.0 cm as shown in Figure P6.48. The circle is always in a vertical plane and rotates steadily about its vertical diameter with a period of 0.450 s. The position of the bead is described by the angle that the radial line, from the center of the loop to the bead, makes with the vertical. (a) At what angle up from the bottom of the circle can the bead slay motionless relative to the turning circle? (b) What If? Repeat the problem, this time taking the period of the circles rotation as 0.850 s. (c) Describe how the solution to part (b) is different from the solution to part (a). (d) For any period or loop size, is there always an angle at which the bead can stand still relative to the loop? (e) Are there ever more than two angles? Arnold Arons suggested the idea for this problem. Figure P6.48arrow_forwardIt has been suggested to place rotating cylinders about 22 km long and 10 km in diameter in space as a colony is habitable. The purpose of the rotation, according to those who propose it, is to provide artificial gravity to its inhabitants, such as they would have if they were on the earth surface. if the mass of the cylinder and its contents were 3.25× 10¹2 kg and we tried to place a satellite of X in a circular orbit with a radius of 8 km How fast in m/s would it describe its orbit around the Earth? OOOO 5.205 x 10⁰ 1.646x10-1 4.184 x 10-5 4.656 x 10⁰arrow_forward
- A proposed space station includes living quarters in a circular ring 63.7 m in diameter. At what angular speed should the ring rotate so the occupants feel 0.636 g where g is the gravitational acceleration on the surface of the Earth?arrow_forwardA <________> is produced by a force that tends to cause rotation about a point; typically, the point is the COG or COM. If an object travels in a circular path at a constant velocity, the object is being accelerated toward the center of the circle. This type of acceleration is called <__________> acceleration. The Big Bang Theory is not about the bang itself but about what happened afterwards. Most of what we believe is inflation theory. True Falsearrow_forwardA planet orbits a small star in a circular orbit. The planet orbits at a speed of 1000 m/s in a counterclockwise direction. The planet is a distance 400 x10 6 m from the center of the star. The radius of the planet is 1.5 x 10 6 m. The astronauts on the surface of the planet measure the speed of the surface to be about 5 m/s and also rotating in a counterclockwise direction. The end goal is to accelerate the rotational speed of the planet to make it the same length of day as earth. Determine: a) The current length of a day (time between sunrises) for the astronauts. b) the maximum possible acceleration experienced if it takes 10 days to accelerate the planet under constant acceleration to reach a 24-hour day.arrow_forward
- The world's tallest Ferris wheel is the High Roller in Las Vegas, NV. It has a radius of about 79 m If the ride time is 8 minutes (480 s), then how many revolutions does the wheel make and how many radians has it rotated?arrow_forwardYour roommate is working on his bicycle and has the bike upside down. He spins the 54.0 cmcm -diameter wheel, and you notice that a pebble stuck in the tread goes by three times every second. What is the pebble's speed? What is the pebble's acceleration?arrow_forwardUnder some circumstances, a star can collapse into an extremely dense object made mostly of neutrons and called a neutron star. A star with a of mass of 2.0x1032 kg and radius 7.0x108 m is initially rotating at a rate of once every 30 days. The star collapses into a neutron star with the same mass but a new radius of 16,000 m. What is the angular speed of the star? (Give your answer in rotations per second.) Assume the star is a solid sphere: Isphere = 2/5 MR2. The Crab Nebula (shown below) formed from a nearby supernova (6000 light years away). Chinese astronomers observed the event in the year 1054 and since that time the nebula has been expanding into what it appears like today. The Crab Pulsar is a neutron star at the center of the nebula and the remains of the original supernova.arrow_forward
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