College Physics: A Strategic Approach (3rd Edition)
3rd Edition
ISBN: 9780321879721
Author: Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher: PEARSON
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Chapter 27, Problem 24MCQ
To determine
To find: The correct option for mass of helium atom.
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Energy in the sun is produced by the fusion of four hydrogen atoms into a helium atom. The process involves several steps, but the net reaction is simply 41H → 4He + energy. Given this, you can say thatA. One helium atom has more mass than four hydrogen atoms.B. One helium atom has less mass than four hydrogen atoms.C. One helium atom has the same mass as four hydrogen atoms.
The nuclear reaction that powers the sun is the fusion of four protons into a helium nucleus. The process involves several steps, but the net reaction is simply 4p → 4He + energy. The mass of a helium nucleus is known to be 6.64 x 10-27 kg.a. How much energy is released in each fusion?b. What fraction of the initial rest mass energy is this energy?
5. The Sun radiates about 4.00 x1026 J of energy into space each second.
a. How much mass does the Sun lose each second due to this radiation?
b.
If the mass of the Sun is 2.00 x1030 kg, how long can the Sun survive if the energy release
continues at the present rate?
Chapter 27 Solutions
College Physics: A Strategic Approach (3rd Edition)
Ch. 27 - Prob. 1CQCh. 27 - Frame S moves relative to frame S as shown in...Ch. 27 - a. Two balls move as shown in Figure Q27.3. What...Ch. 27 - A lighthouse beacon alerts ships to the danger of...Ch. 27 - As a racket passes the earth at 0.75c, it fires a...Ch. 27 - At the instant that a clock standing next to you...Ch. 27 - Prob. 7CQCh. 27 - Firecrackers 1 and 2 are 600 m apart. You are...Ch. 27 - Your clocks and calendars are synchronized with...Ch. 27 - Two trees are 600 m apart. You are standing...
Ch. 27 - Figure Q27.11 shows Peggy standing at the center...Ch. 27 - In Figure Q27.12, clocks C1 and C2, in frame S are...Ch. 27 - A meter stick passes you at a speed of 0.5c....Ch. 27 - Youre passing a car on the highway. You want to...Ch. 27 - Prob. 15CQCh. 27 - Prob. 16CQCh. 27 - The rocket speeds shown in Figure Q27.18 are...Ch. 27 - Can a particle of mass m have total energy less...Ch. 27 - In your chemistry classes, you have probably...Ch. 27 - Lee and Leigh are twins. At their first birthday...Ch. 27 - A space cowboy wants to eject from his spacecraft...Ch. 27 - A lamp flashes at the origin. Then, 1 s later, a...Ch. 27 - Prob. 24MCQCh. 27 - A particle moving at speed 0.40c has momentum p0....Ch. 27 - A particle moving at speed 0.40c has kinetic...Ch. 27 - A sprinter crosses the finish line of a race. The...Ch. 27 - A baseball pitcher can throw a ball with a speed...Ch. 27 - A boy on a skateboard coasts along at 5 m/s. He...Ch. 27 - A boat takes 3.0 hours to travel 30 km down a...Ch. 27 - When the moving sidewalk at the airport is broken,...Ch. 27 - Prob. 6PCh. 27 - An out-of-control alien spacecraft is diving into...Ch. 27 - A starship blasts past the earth at 2.0 103 m/s....Ch. 27 - You are flying at 0.99c with respect to Kara. At...Ch. 27 - You are standing at the point x = 300 m, y = 400 m...Ch. 27 - Prob. 11PCh. 27 - Bianca is standing at x = 600 m. Firecracker 1, at...Ch. 27 - You are standing at x = 9.0 km Lightning bolt 1...Ch. 27 - A light flashes at position x = 0 m. One...Ch. 27 - Jose is baking to the east. Lightning bolt 1...Ch. 27 - Your 1000-m-long starship has warning lights at...Ch. 27 - There is a lightbulb exactly halfway between the...Ch. 27 - A cosmic ray travels 60 km through the earths...Ch. 27 - At what speed relative to a laboratory does a...Ch. 27 - An astronaut travels to a star system 4.5 ly away...Ch. 27 - Prob. 21PCh. 27 - At what speed as a fraction of c, will a moving...Ch. 27 - Jill claims that her new rocket is 100 m long. As...Ch. 27 - A muon travels 60 km through the atmosphere at a...Ch. 27 - The Stanford Linear Accelerator (SLAC) accelerates...Ch. 27 - Our Milky Way galaxy is 100,000 ly in diameter. A...Ch. 27 - The X-15 rocket-powered plane holds the record for...Ch. 27 - A rocket cruising past earth at 0.800c shoots a...Ch. 27 - A base on Planet X fires a missile toward an...Ch. 27 - A solar flare blowing out from the sun at 0.90c is...Ch. 27 - Prob. 31PCh. 27 - Prob. 32PCh. 27 - Prob. 33PCh. 27 - Prob. 34PCh. 27 - What are the kinetic energy, the rest energy, and...Ch. 27 - A quarter-pound hamburger with all the fixings has...Ch. 27 - How fast much an electron move so that its total...Ch. 27 - At what speed is a particle's kinetic energy twice...Ch. 27 - A firecracker explodes at x = 0 m, t = 0 s. A...Ch. 27 - Youre standing on an asteroid when you see your...Ch. 27 - A subatomic particle moves through the laboratory...Ch. 27 - Prob. 42GPCh. 27 - A very fast-moving train car passes you, moving to...Ch. 27 - Two events in reference frame S occur 10 s apart...Ch. 27 - A spaceship heads directly toward an asteroid at a...Ch. 27 - Hill Two spaceships approach each other at speeds...Ch. 27 - A cube has a density of 2000 kg/m3 while at rest...Ch. 27 - A railroad car that is 20 m long when at rest...Ch. 27 - A spaceship flies past an experimenter who...Ch. 27 - Marissas spaceship approaches Josephs at a speed...Ch. 27 - At a speed of 0.90c, a spaceship travels to a star...Ch. 27 - Prob. 54GPCh. 27 - A rocket traveling at 0.500c sets out for the...Ch. 27 - A distant quasar is found to be moving away from...Ch. 27 - Two rockets approach each other. Each is traveling...Ch. 27 - A railcar has a velocity of 0.5c relative to the...Ch. 27 - James, Daniella, and Tara all possess identical...Ch. 27 - A space beacon on Planet Karma emits a pulse of...Ch. 27 - Two rockets, A and B, approach the earth from...Ch. 27 - What is the speed of an electron after being...Ch. 27 - What is the speed of a proton after being...Ch. 27 - Prob. 66GPCh. 27 - What is the momentum of a particle with speed...Ch. 27 - Prob. 68GPCh. 27 - What is the total energy, in MeV, of a. A proton...Ch. 27 - Prob. 70GPCh. 27 - At what speed is the kinetic energy of a particle...Ch. 27 - Prob. 72GPCh. 27 - The chemical energy of gasoline is 46 MJ/kg. If...Ch. 27 - A standard nuclear power plant generates 3.0 GW of...Ch. 27 - The sun radiates energy at the rate 3.8 1026 W....Ch. 27 - The radioactive element radium (Ra) decays by a...Ch. 27 - Prob. 77GPCh. 27 - MCAT-Style Passage Problems Pion Therapy Subatomic...Ch. 27 - MCAT-Style Passage Problems Pion Therapy Subatomic...Ch. 27 - MCAT-Style Passage Problems Pion Therapy Subatomic...Ch. 27 - MCAT-Style Passage Problems Pion Therapy Subatomic...
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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
- A chain of nuclear reactions in the Suns core converts four protons into a helium nucleus. (a) What is the mass difference between four protons and a helium nucleus? (b) How much energy in MeV is released during the conversion of four protons into a helium nucleus?arrow_forwardA supernova explosion of a 2.001031 kg star produces 1.001044 J of energy. (a) How many kilograms of mass are converted to energy in the explosion? (b) What is the ratio m/m of mass destroyed to the original mass of the star?arrow_forwardThere is approximately 1034 J of energy available from fusion of hydrogen in the world's oceans. (a) If 1033 J of this energy were utilized, what would be the decrease in mass of the oceans? (b) How great a volume of water does this correspond to? (c) Comment on whether this is a significant fraction of the total mass of the oceans.arrow_forward
- (a) What is the kinetic energy in MeV of a ray that is traveling at 0.998c? This gives some idea of how energetic a ray must be to travel at nearly the same speed as a ray. (b) What is the velocity of the ray relative to the ray?arrow_forward(a) How could you travel far into the future of Earth without aging significantly? (b) Could this method also allow you to travel into the past?arrow_forward(a) Calculate the energy released by the destruction of 1.00 kg of mass. (b) How many kilograms could be lifted to a 10.0 km height by this amount of energy?arrow_forward
- (a) Using data from Table 7.1, calculate the amount of mass converted to energy by the fusion of 1.00 kg of hydrogen. (b) What is the ratio of mass destroyed to the original mass, m/m ? (c) How does this compare with m/m for the fission of 1.00 kg of uranium?arrow_forwardProtons in an accelerator at the Fermi National Laboratory near Chicago are accelerated to an energy of 400 times their rest energy. (a) What is the speed of these protons? (b) What is their kinetic energy in MeV?arrow_forwardSuppose you are designing a proton decay experiment and you can detect 50 percent of the proton decays in a tank of water. (a) How many kilograms of water would you need to see one decay per month, assuming a lifetime of 1031 y? (b) How many cubic meters of water is this? (c) If the actual lifetime is 1033 y, how long would you have to wait on an average to see a single proton decay?arrow_forward
- (a) Beta decay is nuclear decay in which an electron is emitted. If the electron is given 0.750 MeV of kinetic energy, what is its velocity? (b) Comment on how the high velocity is consistent with the kinetic energy as it compares to the rest mass energy of the electron.arrow_forwardA muon formed high in Earth's atmosphere travels toward Earth at a speed v = 0.990c for a distance of 4.60 km as measured by an observer at rest with respect to Earth. It then decays into an electron, a neutrino, and an antineutrino. (a) How long does the muon survive according to an observer at rest on Earth? (b) Compute the gamma factor associated with the muon. (c) How much time passes according to an observer traveling with the muon? (d) What distance does the muon travel according to an observer traveling with the muon? (e) A third observer traveling toward the muon at c/2 measures the lifetime of the particle. According to this observer, is the muons lifetime shorter or longer than the lifetime measured by the observer at rest with respect to Earth? Explain.arrow_forwardAn astronaut wishes to visit the Andromeda galaxy, making a one-way trip that will take 30.0 years in the space-ships frame of reference. Assume the galaxy is 2.00 million light-years away and his speed is constant. (a) How fast must he travel relative to Earth? (b) What will be the kinetic energy of his spacecraft, which has mass of 1.00 106 kg? (c) What is the cost of this energy if it is purchased at a typical consumer price for electric energy, 13.0 cents per kWh? The following approximation will prove useful: 11+x1x2forx1arrow_forward
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