MODERN PHYSICS
4th Edition
ISBN: 9781119590583
Author: Krane
Publisher: WILEY
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Chapter 2, Problem 2Q
To determine
The differing perception of the motion of rock by two observers and if there is any experiment to determine whether the rock is moving in any absolute sense.
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(a) A luggage carousel at an airport has the form of a section of a large cone, steadily rotating about its vertical axis. Its metallic
surface slopes downward toward the outside, making an angle of 24.5° with the horizontal. A 30.0-kg piece of luggage is placed on
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Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. N
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position 7.94 m from the axis of rotation. The bag is on the verge of slipping as it goes around once every 30.5 s. Calculate the
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(a) Imagine that a space probe could be fired as a projectile from the Earth's surface with an initial speed of 5.78 x 104 m/s relative
to the Sun. What would its speed be when it is very far from the Earth (in m/s)? Ignore atmospheric friction, the effects of other
planets, and the rotation of the Earth. (Consider the mass of the Sun in your calculations.)
Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your
calculation. Carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. m/s
(b) What If? The speed provided in part (a) is very difficult to achieve technologically. Often, Jupiter is used as a "gravitational
slingshot" to increase the speed of a probe to the escape speed from the solar system, which is 1.85 x 104 m/s from a point on
Jupiter's orbit around the Sun (if Jupiter is not nearby). If the probe is launched from the Earth's surface at a speed of
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Chapter 2 Solutions
MODERN PHYSICS
Ch. 2 - Prob. 1QCh. 2 - Prob. 2QCh. 2 - Describe the situation of Figure 2.4 as it would...Ch. 2 - Does the Michelson–Morley experiment show that the...Ch. 2 - Suppose we made a pair of shears in which the...Ch. 2 - Light travels through water at a speed of about...Ch. 2 - Is it possible to have particles that travel at...Ch. 2 - How does relativity combine space and time...Ch. 2 - Einstein developed the relativity theory after...Ch. 2 - Explain in your own words the terms time dilation...
Ch. 2 - Does the Moon’s disk appear to be a different size...Ch. 2 - According to the time dilation effect, would the...Ch. 2 - Criticize the following argument. “Here is a way...Ch. 2 - Is it possible to synchronize clocks that are in...Ch. 2 - Suppose event A causes event B. To one observer,...Ch. 2 - Is mass a conserved quantity in classical physics?...Ch. 2 - “In special relativity, mass and energy are...Ch. 2 - Which is more massive, an object at low...Ch. 2 - Prob. 19QCh. 2 - Prob. 20QCh. 2 - You are piloting a small airplane in which you...Ch. 2 - A moving sidewalk 95 m in length carries...Ch. 2 - Prob. 3PCh. 2 - Prob. 4PCh. 2 - Prob. 5PCh. 2 - An astronaut must journey to a distant planet,...Ch. 2 - The proper lifetime of a certain particle is 120.0...Ch. 2 - High-energy particles are observed in laboratories...Ch. 2 - Prob. 9PCh. 2 - Two spaceships approach the Earth from opposite...Ch. 2 - Rocket A leaves a space station with a speed of...Ch. 2 - One of the strongest emission lines observed from...Ch. 2 - Prob. 13PCh. 2 - Three rods are joined to form a 45–45–90 triangle,...Ch. 2 - In the Relativistic Heavy Ion Collider (an...Ch. 2 - Derive the Lorentz velocity transformations for ...Ch. 2 - Observer O fires a light beam in the y direction...Ch. 2 - A light bulb at point x in the frame of reference...Ch. 2 - A neutral K meson at rest decays into two π...Ch. 2 - A rod in the reference frame of observer O makes...Ch. 2 - Two events occur at locations separated by a...Ch. 2 - According to observer O, a blue flash occurs at xb...Ch. 2 - Suppose the speed of light were 1000 mi/h. You are...Ch. 2 - Suppose rocket traveler Amelia has a clock made on...Ch. 2 - Suppose Amelia traveled at a speed of 0.80c to a...Ch. 2 - Make a drawing similar to Figure 2.20 showing the...Ch. 2 - Two twins make a round-trip journey from Earth to...Ch. 2 - Agnes makes a round trip at a constant speed to a...Ch. 2 - (a) Using the relativistically correct final...Ch. 2 - Find the momentum, kinetic energy, and total...Ch. 2 - An electron is moving with a kinetic energy of...Ch. 2 - Prob. 32PCh. 2 - Prob. 33PCh. 2 - Prob. 34PCh. 2 - Use Equations 2.32 and 2.36 to derive Equation...Ch. 2 - By carrying the binomial expansion one term...Ch. 2 - (a) According to observer O, a certain particle...Ch. 2 - An electron is moving at a speed of 0.85c. By how...Ch. 2 - Prob. 39PCh. 2 - Find the kinetic energy of an electron moving at a...Ch. 2 - An electron and a proton are each accelerated...Ch. 2 - Prob. 42PCh. 2 - A π meson of rest energy 139.6 MeV moving at a...Ch. 2 - An electron and a positron (an antielectron) make...Ch. 2 - It is desired to create a particle of mass 9460...Ch. 2 - A particle of rest energy mc2 is moving with speed...Ch. 2 - Let’s consider a different approach to Example...Ch. 2 - In the muon decay experiment discussed in Section...Ch. 2 - Derive the relativistic expression p2/2K = m +...Ch. 2 - Suppose we want to send an astronaut on a round...Ch. 2 - Prob. 52PCh. 2 - Observer O sees a red flash of light at the origin...Ch. 2 - Several spacecraft leave a space station at the...Ch. 2 - Observer O sees a light turn on at x = 524 m when...Ch. 2 - Suppose an observer O measures a particle of mass...Ch. 2 - Prob. 59PCh. 2 - A beam of 2.14 × 1011 electrons/s moving at a...Ch. 2 - An electron moving at a speed of vi = 0.960c in...Ch. 2 - A pion has a rest energy of 135 MeV. It decays...Ch. 2 - Prob. 63P
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