University Physics (14th Edition)
14th Edition
ISBN: 9780133969290
Author: Hugh D. Young, Roger A. Freedman
Publisher: PEARSON
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Question
Chapter 12, Problem 12.6E
(a)
To determine
The average density of the Sun.
(b)
To determine
The average density of a neutron star having same mass as the sun.
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(a) What is the average density of the sun? (b) What is the average density of a neutron star that has the same mass as the sun but a radius of only 17.247 km? (express your answer in the proper SI unit and without scientific notation)
(a) What is the average density of the sun? (b) What is the av- erage density of a neutron star that has the same mass as the sun but a radius of only 20.24 km? (express your answer in the proper SI unit and without scientific notation)
A neutron star is composed of neutrons and has a density that is approximately the same as that of a nucleus (about 2.3 × 1017 kg/m3). What is the radius of a neutron star whose mass is 1.20 times the mass of the sun (M = 1.99 × 1030 kg)?
Chapter 12 Solutions
University Physics (14th Edition)
Ch. 12 - A cube of oak wood with very smooth faces normally...Ch. 12 - A rubber hose is attached to a funnel, and the...Ch. 12 - Comparing Example 12.1 (Section 12.1) and Example...Ch. 12 - Prob. Q12.4DQCh. 12 - You have probably noticed that the lower the tire...Ch. 12 - In hot-air ballooning, a large balloon is filled...Ch. 12 - In describing the size of a large ship, one uses...Ch. 12 - You drop a solid sphere of aluminum in a bucket of...Ch. 12 - A rigid, lighter-than-air dirigible filled with...Ch. 12 - Which has a greater buoyant force on it: a 25-cm3...
Ch. 12 - The purity of gold can be tested by weighing it in...Ch. 12 - During the Great Mississippi Flood of 1993, the...Ch. 12 - A cargo ship travels from the Atlantic Ocean (salt...Ch. 12 - You push a piece of wood under the surface of a...Ch. 12 - An old question is Which weighs more, a pound of...Ch. 12 - Suppose the door of a room makes an airtight but...Ch. 12 - At a certain depth in an incompressible liquid,...Ch. 12 - A piece of iron is glued to the top of a block of...Ch. 12 - You take an empty glass jar and push it into a...Ch. 12 - You are floating in a canoe in the middle of a...Ch. 12 - You are floating in a canoe in the middle of a...Ch. 12 - Two identical buckets are filled to the brim with...Ch. 12 - An ice cube floats in a glass of water. When the...Ch. 12 - A helium-filled balloon is tied to a light string...Ch. 12 - If the velocity at each point in space in...Ch. 12 - In a store-window vacuum cleaner display, a...Ch. 12 - A tornado consists of a rapidly whirling air...Ch. 12 - Airports at high elevations have longer runways...Ch. 12 - When a smooth-flowing stream of water comes out of...Ch. 12 - Prob. Q12.30DQCh. 12 - Prob. 12.1ECh. 12 - A cube 5.0 cm on each side is made of a metal...Ch. 12 - Prob. 12.3ECh. 12 - Gold Brick. You win the lottery and decide to...Ch. 12 - A uniform lead sphere and a uniform aluminum...Ch. 12 - Prob. 12.6ECh. 12 - A hollow cylindrical copper pipe is 1.50 m long...Ch. 12 - Prob. 12.8ECh. 12 - Prob. 12.9ECh. 12 - BIO (a) Calculate the difference in blood pressure...Ch. 12 - BIO In intravenous feeding, a needle is inserted...Ch. 12 - A barrel contains a 0.120-m layer of oil floating...Ch. 12 - BIO Standing on Your Head. (a) What is the...Ch. 12 - You are designing a diving bell to withstand the...Ch. 12 - BIO Ear Damage from Diving. If the force on the...Ch. 12 - The liquid in the open-tube manometer in Fig....Ch. 12 - BIO There is a maximum depth at which a diver can...Ch. 12 - BIO The lower end of a long plastic straw is...Ch. 12 - An electrical short cuts off all power to a...Ch. 12 - A tall cylinder with a cross-sectional area 12.0...Ch. 12 - A cylindrical disk of wood weighing 45.0 N and...Ch. 12 - A closed container is partially filled with water....Ch. 12 - Hydraulic Lift I. For the hydraulic lift shown in...Ch. 12 - Hydraulic Lift II. The piston of a hydraulic...Ch. 12 - Exploring Venus. The surface pressure on Venus is...Ch. 12 - A rock has mass 1.80 kg. When the rock is...Ch. 12 - A 950-kg cylindrical can buoy floats vertically in...Ch. 12 - A slab of ice floats on a freshwater lake. What...Ch. 12 - An ore sample weighs 17.50 N in air. When the...Ch. 12 - You are preparing some apparatus for a visit to a...Ch. 12 - A rock with density 1200 kg/m3 is suspended from...Ch. 12 - A hollow plastic sphere is held below the surface...Ch. 12 - A cubical block of wood, 10.0 cm on a side, floats...Ch. 12 - A solid aluminum ingot weighs 89 N in air. (a)...Ch. 12 - A rock is suspended by a light string. When the...Ch. 12 - Water runs into a fountain, filling all the pipes,...Ch. 12 - A shower head has 20 circular openings, each with...Ch. 12 - Water is flowing in a pipe with a varying...Ch. 12 - Water is flowing in a pipe with a circular cross...Ch. 12 - Home Repair. You need to extend a...Ch. 12 - A sealed tank containing seawater to a height of...Ch. 12 - Prob. 12.42ECh. 12 - What gauge pressure is required in the city water...Ch. 12 - A small circular hole 6.00 mm in diameter is cut...Ch. 12 - At a certain point in a horizontal pipeline, the...Ch. 12 - At one point in a pipeline the waters speed is...Ch. 12 - A golf course sprinkler system discharges water...Ch. 12 - A soft drink (mostly water) flows in a pipe at a...Ch. 12 - Prob. 12.49ECh. 12 - A pressure difference of 6.00 104 Pa is required...Ch. 12 - In a lecture demonstration, a professor pulls...Ch. 12 - CP The deepest point known in any of the earths...Ch. 12 - CALC A swimming pool is 5.0 m long, 4.0 m wide,...Ch. 12 - BIO Fish Navigation. (a) As you can tell by...Ch. 12 - CP CALC The upper edge of a gate in a dam runs...Ch. 12 - Ballooning on Mars. It has been proposed that we...Ch. 12 - A 0.180-kg cube of ice (frozen water) is floating...Ch. 12 - A narrow. U-shaped glass tube with open ends is...Ch. 12 - A U-shaped tube open to the air at both ends...Ch. 12 - CALC The Great Molasses Flood. On the afternoon of...Ch. 12 - A large, 40.0-kg cubical block of wood with...Ch. 12 - A hot-air balloon has a volume of 2200 m3. The...Ch. 12 - Prob. 12.63PCh. 12 - A single ice cube with mass 16.4 g floats in a...Ch. 12 - Advertisements for a certain small car claim that...Ch. 12 - A piece of wood is 0.600 m long, 0.250 in wide,...Ch. 12 - The densities of air, helium, and hydrogen (at =...Ch. 12 - When an open-faced boat has a mass of 5750 kg,...Ch. 12 - Prob. 12.69PCh. 12 - In seawater, a life preserver with a volume of...Ch. 12 - CALC A closed and elevated vertical cylindrical...Ch. 12 - Prob. 12.72PCh. 12 - A plastic ball has radius 12.0 cm and floats in...Ch. 12 - Assume that crude oil from a supertanker has...Ch. 12 - Prob. 12.75PCh. 12 - A barge is in a rectangular lock on a freshwater...Ch. 12 - CP Water stands at a depth H in a large, open tank...Ch. 12 - Your uncle is in the below-deck galley of his boat...Ch. 12 - Prob. 12.79PCh. 12 - A cylindrical bucket, open at the top, is 25.0 cm...Ch. 12 - Prob. 12.81PCh. 12 - Prob. 12.82PCh. 12 - Two very large open tanks A and F (Fig. P12.83)...Ch. 12 - A liquid flowing from a vertical pipe has a...Ch. 12 - DATA The density values in Table 12.1 are listed...Ch. 12 - DATA You have a bucket containing; in unknown...Ch. 12 - DATA The Environmental Protection Agency is...Ch. 12 - A siphon (Fig. P12.88) is a convenient device for...Ch. 12 - For the situation shown, the tissues in the...Ch. 12 - The maximum force the muscles of the diaphragm can...Ch. 12 - How does the force the diaphragm experiences due...Ch. 12 - If the elephant were to snorkel in salt water,...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- At the end of a massive star’s life, its core can undergo a catastrophic collapse that triggers a supernova explosion. The core remnant consists of about 1.4 solar masses’ worth of pure neutronsand is called a neutron star. What is the approximate radius of such a neutron star, if neutrons arereally like incompressible spheres?arrow_forwardSince neutron stars consist totally of neutrons, they are extremely massive and have a density that is hard to imagine. A typical radius and mass for a neutron star are 2.00 x 103 m and 4.00 x 1048 kg respectively. (a) Determine the density of a neutron star. kg/m3 (b) Determine the weight (in pounds) of a penny (V = 360 mm) if it were made from this material. (Assume 1 lb = 4.448 N.) Ibarrow_forwardNuclear matter is extremely dense. (a) Calculate the density, in kg/m³, of A neutrons in a sphere of radius r = ro 4¹/3, where ro = 1.2 x 10-¹5 m. (b) Find the diameter of a sphere of nuclear matter that would have the same mass as the earth. The average radius of the earth is 6.4 x 106 m and the average density of the earth is 5.5 x 10³ kg/m³.arrow_forward
- 12.4 (a) What is the average density of the sun? (b) What is the av- erage density of a neutron star that has the same mass as the sun but a radius of only 20.0 km? 125 unifernn lood cnhere ond o uniform ol1uminunn ephore bovearrow_forwardFind the average density of a white dwarf star if it has a mass equal to that of the sun (2.5 x 10³0 kg) and a radius equal to that of the Earth (6.4 × 106 m).arrow_forwardThe radius of Jupiter is about 69.0 x 103 km. The radius of the Sun is about 68.0 x 104 km. How many Jupiter volumes would fit inside the suns volume ?arrow_forward
- Neutron stars consist only of neutrons and have unbelievably high densities. A typical mass and radius for a neutron star might be 1.20 1028 kg and 1.60 103 m. (a) Find the density of such a star.(b) If a dime (V = 2.0 10-7m3) were made from this material, how much would it weigh (in pounds)?arrow_forwardNeutron stars consist only of neutrons and have unbelievably high densities. A typical mass and radius for a neutron star might be 2.00 x 1o28 kg and 1.80 x 103 m. (a) Find the density of such a star. 81869826600000, kg/m3 (b) If a dime (V = 2.0 x 10-7m³) were made from this material, how much would it weigh (in pounds)? 1.64 X Ibarrow_forwardWhen a massive star reaches the end of its life, it is possible for a supernova to occur. This may result in the formation of a very kg small, but very dense, neutron star, the density of which is about the same as a neutron. A neutron has a mass of 1.7 x 10-27 and an approximate radius of 1.2 x 10-15 m. The mass of the sun is 2.0 x 1030 kg. Determine the radius R of a neutron star that has three times the mass of our Sun and the same density as a neutron. 1.27 x104 R = Incorrectarrow_forward
- The "classical" radius of a neutron is about 0.79 fm (1 femtometer = 10-15 m). The mass of a neutron is 1.675×10-27 kg. Assuming the neutron is spherical, calculate its density in kilograms per cubic meter.arrow_forwardSince neutron stars consist totally of neutrons, they are extremely massive and have a density that is hard to imagine. A typical radius and mass for a neutron star are 1.30 x 10³ m and 3.60 x 1028 kg respectively. (a) Determine the density of a neutron star. kg/m³ (b) Determine the weight (in pounds) of a penny (V = 360 mm³) if it were made from this material. (Assume 1 lb = 4.448 N.) lbarrow_forwardThe average density of the Sun is on the order 103 kg/m3. (a) Estimate the diameter of the Sun. (b) Given that the Sun subtends at an angle of about half a degree in the sky, estimate its distance from Earth.arrow_forward
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