Problem 39.1QQ: Which observer in Figure 38.1 sees the balls correct path? (a) the observer in the truck (b) the... Problem 39.2QQ: A baseball pitcher with a 90-mi/h fastball throws a ball while standing on a railroad flatcar moving... Problem 39.3QQ: Suppose the observer O on the train in Figure 38.6 aims her flashlight at the far wall of the boxcar... Problem 39.4QQ: A crew on a spacecraft watches a movie that is two hours long. The spacecraft is moving at high... Problem 39.5QQ: Suppose astronauts are paid according to the amount of time they spend traveling in space. After a... Problem 39.6QQ: You are packing for a trip to another star. During the journey, you will be traveling at 0.99c. You... Problem 39.7QQ: You are observing a spacecraft moving away from you. You measure it to be shorter than when it was... Problem 39.8QQ: You are driving on a freeway at a relativistic speed. (i) Straight ahead of you, a technician... Problem 39.9QQ: The following pairs of energiesparticle 1: E, 2E; particle 2: E, 3E; particle 3: 2E, 4Erepresent the... Problem 39.1OQ: (i) Does the speed of an electron have an upper limit? (a) yes, the speed of light c (b) yes, with... Problem 39.2OQ: A spacecraft zooms past the Earth with a constant velocity. An observer on the Earth measures that... Problem 39.3OQ: As a car heads down a highway traveling at a speed v away from a ground observer, which of the... Problem 39.4OQ: A spacecraft built in the shape of a sphere moves past an observer on the Earth with a speed of... Problem 39.5OQ: An astronaut is traveling in a spacecraft in outer space in a straight line at a constant speed of... Problem 39.6OQ: You measure the volume of a cube at rest to be V0. You then measure the volume of the same cube as... Problem 39.7OQ: Two identical clocks are set side by side and synchronized. One remains on the Earth. The other is... Problem 39.8OQ Problem 39.9OQ: Which of the following statements are fundamental postulates of the special theory of relativity?... Problem 39.10OQ: A distant astronomical object (a quasar) is moving away from us at half the speed of light. What is... Problem 39.1CQ: In several cases, a nearby star has been found to have a huge planet orbiting about it, although... Problem 39.2CQ Problem 39.3CQ: A train is approaching yon at very high speed as you stand next to the tracks. Just as an observer... Problem 39.4CQ: List three ways our day-to-day lives would change if the speed of light were only 50 m/s. Problem 39.5CQ Problem 39.6CQ Problem 39.7CQ Problem 39.8CQ Problem 39.9CQ: Give a physical argument that shows it is impossible to accelerate an object of mass m to the speed... Problem 39.10CQ Problem 39.11CQ Problem 39.12CQ: (i) An object is plated at a position p f from a concave mirror as shown in Figure CQ39.12a, where... Problem 39.13CQ: With regard to reference frames, how does general relativity differ from special relativity? Problem 39.14CQ: Two identical clocks are in the same house, one upstairs in a bedroom and the other downstairs in... Problem 39.1P: The truck in Figure P39.1 is moving at a speed of 10.0 m/s relative to the ground. The person on the... Problem 39.2P: In a laboratory frame of reference, an observer notes that Newtons second law is valid. Assume... Problem 39.3P: The speed of the Earth in its orbit is 29.8 km/s. If that is the magnitude of the velocity v of the... Problem 39.4P Problem 39.5P Problem 39.6P: A meterstick moving at 0.900c relative to the Earths surface approaches an observer at rest with... Problem 39.7P Problem 39.8P: A muon formed high in the Earths atmosphere is measured by an observer on the Earths surface to... Problem 39.9P: How fast must a meterstick be moving if its length is if measured to shrink to 0.500 m? Problem 39.10P: An astronaut is traveling in a space vehicle moving at 0.500c relative to the Earth. The astronaut... Problem 39.11P: A physicist drives through a stop light. When he is pulled over, he tells the police officer that... Problem 39.12P: A fellow astronaut passes by you in a spacecraft traveling at a high speed. The astronaut tells you... Problem 39.13P: A deep-space vehicle moves away from the Earth with a speed of 0.800c. An astronaut on the vehicle... Problem 39.14P: For what value of does = 1.010 0? Observe that for speeds lower than this value, time dilation and... Problem 39.15P: A supertrain with a proper length of 100 m travels at a speed of 0.950c as it passes through a... Problem 39.16P: The average lifetime of a pi meson in its own frame of reference (i.e., the proper lifetime) is 2.6 ... Problem 39.17P: An astronomer on the Earth observes a meteoroid in the southern sky approaching the Earth at a speed... Problem 39.18P: A cube of steel has a volume of 1.00 cm3 and mass 8.00 g when at rest on the Earth. If this cube is... Problem 39.19P: A spacecraft with a proper length of 300 m passes by an observer on the Earth. According to this... Problem 39.20P: A spacecraft with a proper length of Lp passes by an observer on the Earth. According to this... Problem 39.21P: A light source recedes from an observer with a speed s that is small compared with c. (a) Show that... Problem 39.22P: Review. In 1963, astronaut Gordon Cooper orbited the Earth 22 times. The press stated that for each... Problem 39.23P: Police radar detects the speed of a car (Fig. P38.15) as follows. Microwaves of a precisely known... Problem 39.24P: The identical twins Speedo and Goslo join a migration from the Earth to Planet X, 20.0 ly away in a... Problem 39.25P: An atomic clock moves at 1 000 km/h for 1.00 h as measured by an identical clock on the Earth. At... Problem 39.26P Problem 39.27P: A red light flashes at position xR = 3.00 m and time tR = 1.00 109 s, and a blue light flashes at xB... Problem 39.28P: Shannon observes two light pulses to be emitted from the same location, but separated in time by... Problem 39.29P: A moving rod is observed to have a length of = 2.00 m and to be oriented at an angle of = 30.0... Problem 39.30P: A rod moving with a speed v along the horizontal direction is observed to have length and to make... Problem 39.31P: Keilah, in reference frame S, measures two events to be simultaneous. Event A occurs at the point... Problem 39.32P: Figure P38.21 shows a jet of material (at the upper right) being ejected by galaxy M87 (at the lower... Problem 39.33P: An enemy spacecraft moves away from the Earth at a speed of = 0.800c (Fig. P39.33). A galactic... Problem 39.34P: A spacecraft is launched from the surface of the Earth with a velocity of 0.600c at an angle of 50.0... Problem 39.35P Problem 39.36P: Calculate the momentum of an electron moving with a speed of (a) 0.010 0c, (b) 0.500c, and (c)... Problem 39.37P Problem 39.38P Problem 39.39P Problem 39.40P Problem 39.41P Problem 39.42P Problem 39.43P: An unstable particle at rest spontaneously breaks into two fragments of unequal mass. The mass of... Problem 39.44P Problem 39.45P Problem 39.46P: Protons in an accelerator at the Fermi National Laboratory near Chicago are accelerated to a total... Problem 39.47P: A proton moves at 0.950c. Calculate its (a) rest energy, (b) total energy, and (c) kinetic energy. Problem 39.48P: (a) Find the kinetic energy of a 78.0-kg spacecraft launched out of the solar system with speed 106... Problem 39.49P: A proton in a high-energy accelerator moves with a speed of c/2. Use the work-kinetic energy theorem... Problem 39.50P Problem 39.51P: The total energy of a proton is twice its rest energy. Find the momentum of the proton in MeV/c... Problem 39.52P Problem 39.53P: When 1.00 g of hydrogen combines with 8.00 g of oxygen, 9.00 g of water is formed. During this... Problem 39.54P: In a nuclear power plain, the fuel rods last 3 yr before they are replaced. The plant can transform... Problem 39.55P: The power output of the Sun is 3.85 1026 W. By how much does the mass of the Sun decrease each... Problem 39.56P Problem 39.57P Problem 39.58P Problem 39.59P: The rest energy of an electron is 0.511 MeV. The rest energy of a proton is 938 MeV. Assume both... Problem 39.60P Problem 39.61P: A pion at rest (m = 273me) decays to a muon (m = 207me) and an antineutrino (mp 0). The reaction is... Problem 39.62P: An unstable particle with mass m = 3.34 1027 kg is initially at rest. The particle decays into two... Problem 39.63P Problem 39.64P Problem 39.65P: Review. A global positioning system (GPS) satellite moves in a circular orbit with period 11 h 58... Problem 39.66AP Problem 39.67AP: The net nuclear fusion reaction inside the Sun can be written as 41H 4He + E. The rest energy of... Problem 39.68AP Problem 39.69AP: A Doppler weather radar station broadcasts a pulse of radio waves at frequency 2.85 GHz. From a... Problem 39.70AP: An object having mass 900 kg and traveling at speed 0.850c collides with a stationary object having... Problem 39.71AP: An astronaut wishes to visit the Andromeda galaxy, making a one-way trip that will take 30.0 years... Problem 39.72AP: A physics professor on the Earth gives an exam to her students, who are in a spacecraft traveling at... Problem 39.73AP: An interstellar space probe is launched from Earth. After a brief period of acceleration, it moves... Problem 39.74AP Problem 39.75AP Problem 39.76AP: An object disintegrates into two fragments. One fragment has mass 1.00 MeV/c2 and momentum 1.75... Problem 39.77AP: The cosmic rays of highest energy are protons that m have kinetic energy on the order of 1013 MeV.... Problem 39.78AP: Spacecraft I. containing students taking a physics exam, approaches the Earth with a speed of 0.600c... Problem 39.79AP: Review. Around the core of a nuclear reactor shielded by a large pool of water. Cerenkov radiation... Problem 39.80AP: The motion of a transparent medium influences the speed of light. This effect was first observed by... Problem 39.81AP Problem 39.82AP Problem 39.83AP: An alien spaceship traveling at 0.600c toward the Earth launches a landing craft. The landing craft... Problem 39.84AP Problem 39.85AP Problem 39.86AP: An observer in a coasting spacecraft moves toward a mirror at speed v relative to the reference... Problem 39.87AP Problem 39.88CP: A particle with electric charge q moves along a straight line in a uniform electric field E with... Problem 39.89CP Problem 39.90CP: Suppose our Sun is about to explode. In an effort to escape, we depart in a spacecraft at v = 0.800c... Problem 39.91CP: Owen and Dina are at rest in frame S. which is moving at 0.600c with respect to frame S. They play a... format_list_bulleted