EBK PHYSICS FOR SCIENTISTS AND ENGINEER
9th Edition
ISBN: 9780100460300
Author: SERWAY
Publisher: YUZU
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Chapter 39, Problem 39.82AP
To determine
The reason for which the following situation is impossible.
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Students have asked these similar questions
This transmission electron microscope (TEM) image of coronavirus can be taken using a beam of
electrons accelerated from rest through a potential difference of 25 kV. What is the final speed of
the electrons?
Provide the answer: .
x 108 m/s
An electron is accelerated from rest through a potential difference of 3.00 kV. What is its final velocity? The mass of an electron is 9.109×10-31 kg.
Suppose an electron (g= - e= -1.6x 10-19 C ,m=9.1× 10-31 kg) is accelerated from rest through a potential
difference of Vab = +5000 V. Solve for the final speed of the electron. Express numerical answer in two
significant figures.
The potential energy U is related to the electron charge (-e) and potential vab is related by the equation:
U=
Assuming all potential energy U is converted to kinetic energy K,
K + U = 0
K = -U
Since K=mv and using the formula for potential energy above, we arrive at an equation for speed:
v = (
1/2
Plugging in values, the value of the electron's speed is:
V=
x 107 m/s
Chapter 39 Solutions
EBK PHYSICS FOR SCIENTISTS AND ENGINEER
Ch. 39 - Which observer in Figure 38.1 sees the balls...Ch. 39 - A baseball pitcher with a 90-mi/h fastball throws...Ch. 39 - Suppose the observer O on the train in Figure 38.6...Ch. 39 - A crew on a spacecraft watches a movie that is two...Ch. 39 - Suppose astronauts are paid according to the...Ch. 39 - You are packing for a trip to another star. During...Ch. 39 - You are observing a spacecraft moving away from...Ch. 39 - You are driving on a freeway at a relativistic...Ch. 39 - The following pairs of energiesparticle 1: E, 2E;...Ch. 39 - (i) Does the speed of an electron have an upper...
Ch. 39 - A spacecraft zooms past the Earth with a constant...Ch. 39 - As a car heads down a highway traveling at a speed...Ch. 39 - A spacecraft built in the shape of a sphere moves...Ch. 39 - An astronaut is traveling in a spacecraft in outer...Ch. 39 - You measure the volume of a cube at rest to be V0....Ch. 39 - Two identical clocks are set side by side and...Ch. 39 - Prob. 39.8OQCh. 39 - Which of the following statements are fundamental...Ch. 39 - A distant astronomical object (a quasar) is moving...Ch. 39 - In several cases, a nearby star has been found to...Ch. 39 - Prob. 39.2CQCh. 39 - A train is approaching yon at very high speed as...Ch. 39 - List three ways our day-to-day lives would change...Ch. 39 - Prob. 39.5CQCh. 39 - Prob. 39.6CQCh. 39 - Prob. 39.7CQCh. 39 - Prob. 39.8CQCh. 39 - Give a physical argument that shows it is...Ch. 39 - Prob. 39.10CQCh. 39 - Prob. 39.11CQCh. 39 - (i) An object is plated at a position p f from a...Ch. 39 - With regard to reference frames, how does general...Ch. 39 - Two identical clocks are in the same house, one...Ch. 39 - The truck in Figure P39.1 is moving at a speed of...Ch. 39 - In a laboratory frame of reference, an observer...Ch. 39 - The speed of the Earth in its orbit is 29.8 km/s....Ch. 39 - Prob. 39.4PCh. 39 - Prob. 39.5PCh. 39 - A meterstick moving at 0.900c relative to the...Ch. 39 - Prob. 39.7PCh. 39 - A muon formed high in the Earths atmosphere is...Ch. 39 - How fast must a meterstick be moving if its length...Ch. 39 - An astronaut is traveling in a space vehicle...Ch. 39 - A physicist drives through a stop light. When he...Ch. 39 - A fellow astronaut passes by you in a spacecraft...Ch. 39 - A deep-space vehicle moves away from the Earth...Ch. 39 - For what value of does = 1.010 0? Observe that...Ch. 39 - A supertrain with a proper length of 100 m travels...Ch. 39 - The average lifetime of a pi meson in its own...Ch. 39 - An astronomer on the Earth observes a meteoroid in...Ch. 39 - A cube of steel has a volume of 1.00 cm3 and mass...Ch. 39 - A spacecraft with a proper length of 300 m passes...Ch. 39 - A spacecraft with a proper length of Lp passes by...Ch. 39 - A light source recedes from an observer with a...Ch. 39 - Review. In 1963, astronaut Gordon Cooper orbited...Ch. 39 - Police radar detects the speed of a car (Fig....Ch. 39 - The identical twins Speedo and Goslo join a...Ch. 39 - An atomic clock moves at 1 000 km/h for 1.00 h as...Ch. 39 - Prob. 39.26PCh. 39 - A red light flashes at position xR = 3.00 m and...Ch. 39 - Shannon observes two light pulses to be emitted...Ch. 39 - A moving rod is observed to have a length of =...Ch. 39 - A rod moving with a speed v along the horizontal...Ch. 39 - Keilah, in reference frame S, measures two events...Ch. 39 - Figure P38.21 shows a jet of material (at the...Ch. 39 - An enemy spacecraft moves away from the Earth at a...Ch. 39 - A spacecraft is launched from the surface of the...Ch. 39 - Prob. 39.35PCh. 39 - Calculate the momentum of an electron moving with...Ch. 39 - Prob. 39.37PCh. 39 - Prob. 39.38PCh. 39 - Prob. 39.39PCh. 39 - Prob. 39.40PCh. 39 - Prob. 39.41PCh. 39 - Prob. 39.42PCh. 39 - An unstable particle at rest spontaneously breaks...Ch. 39 - Prob. 39.44PCh. 39 - Prob. 39.45PCh. 39 - Protons in an accelerator at the Fermi National...Ch. 39 - A proton moves at 0.950c. Calculate its (a) rest...Ch. 39 - (a) Find the kinetic energy of a 78.0-kg...Ch. 39 - A proton in a high-energy accelerator moves with a...Ch. 39 - Prob. 39.50PCh. 39 - The total energy of a proton is twice its rest...Ch. 39 - Prob. 39.52PCh. 39 - When 1.00 g of hydrogen combines with 8.00 g of...Ch. 39 - In a nuclear power plain, the fuel rods last 3 yr...Ch. 39 - The power output of the Sun is 3.85 1026 W. By...Ch. 39 - Prob. 39.56PCh. 39 - Prob. 39.57PCh. 39 - Prob. 39.58PCh. 39 - The rest energy of an electron is 0.511 MeV. The...Ch. 39 - Prob. 39.60PCh. 39 - A pion at rest (m = 273me) decays to a muon (m =...Ch. 39 - An unstable particle with mass m = 3.34 1027 kg...Ch. 39 - Prob. 39.63PCh. 39 - Prob. 39.64PCh. 39 - Review. A global positioning system (GPS)...Ch. 39 - Prob. 39.66APCh. 39 - The net nuclear fusion reaction inside the Sun can...Ch. 39 - Prob. 39.68APCh. 39 - A Doppler weather radar station broadcasts a pulse...Ch. 39 - An object having mass 900 kg and traveling at...Ch. 39 - An astronaut wishes to visit the Andromeda galaxy,...Ch. 39 - A physics professor on the Earth gives an exam to...Ch. 39 - An interstellar space probe is launched from...Ch. 39 - Prob. 39.74APCh. 39 - Prob. 39.75APCh. 39 - An object disintegrates into two fragments. One...Ch. 39 - The cosmic rays of highest energy are protons that...Ch. 39 - Spacecraft I. containing students taking a physics...Ch. 39 - Review. Around the core of a nuclear reactor...Ch. 39 - The motion of a transparent medium influences the...Ch. 39 - Prob. 39.81APCh. 39 - Prob. 39.82APCh. 39 - An alien spaceship traveling at 0.600c toward the...Ch. 39 - Prob. 39.84APCh. 39 - Prob. 39.85APCh. 39 - An observer in a coasting spacecraft moves toward...Ch. 39 - Prob. 39.87APCh. 39 - A particle with electric charge q moves along a...Ch. 39 - Prob. 39.89CPCh. 39 - Suppose our Sun is about to explode. In an effort...Ch. 39 - Owen and Dina are at rest in frame S. which is...
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- If an electron is accelerated from rest through a potential difference of 9.9 kV, what is its resulting speed? (e = 1.60 x 10-19 C, k= 1/4ne0 = 8.99 x 109 N. m2/C2, mel = 9.11 x 10-31 kg) %3D O 5.9 x 107 m/s 2.9 x 107 m/s O 4.9 x 10 m/s 3.9 x 10 m/s None of the given choices.arrow_forwardAn electron is accelerating under a potential difference of 105 volts. (m,=9,108x10 31) a) What is the kinetic energy of the electron?arrow_forwardA proton is accelerated from rest through a potential difference of 370 V. What is its final speed?arrow_forward
- Suppose an electron (q= -e= -1.6 x 10-19 C,m=9.1x 10-31 kg) is accelerated from rest through a potential difference of Vab = +5000 V. Solve for the final speed of the electron. Express numerical answer in two significant figures. The potential energy U is related to the electron charge (-e) and potential Vab is related by the equation: U = Assuming all potential energy U is converted to kinetic energy K, K +U = 0 K = -U Since K- and using the formula for potential energy above, we arrive at an equation for speed: v = ( 51/2 Plugging in values, the value of the electron's speed is: V= x 107 m/sarrow_forwardA positron (a particle with a charge +e and a mass equal to that of electron) that is accelerated from rest between two points at a fixed potential difference acquires a speed of 9.0x10^7 m/s. What speed is achieved by a proton accelerated from rest between the same two points? (Disregard relativistic effects.) a) 2.5x10^6 m/s b) 2.1x10^6 m/s c) 2.8x10^7 m/s d) 4.9x10^7m/s e) None of the Abovearrow_forwardStarting from rest, a proton falls through a potential difference of 1 MV. Find its final velocity.arrow_forward
- Determine the maximum speed an alpha particle consisting of (mass of two protons and two neutrons = 6.65*10^-24kg) could reach if it moves from rest through a potential difference of 4.95 kV.arrow_forwardIn large CRT televisions, electrons are accelerated from rest by a potential difference of 23.88 kV and shot onto a phosphorescent screen to produce an image. What is the speed of the electrons when they reach the screen? (g. = 1.602 x 10-19C ;me = 9.11 x 10 -31 kg) Answer: x10' m (express your answers in tenths place or one decimal digit only)arrow_forwardA stationary proton is accelerated through a potential difference of 83.5 kV. What speed did the proton acquire?arrow_forward
- In a television picture tube, electrons strike the screen after being accelerated from rest through a potential difference of 17000 V. The speeds of the electrons are quite large, and for accurate calculations of the speeds, the effects of special relativity must be taken into account. Ignoring such effects, find the electron speed just before the electron strikes the screen.arrow_forwardA proton is accelerated through a potential difference of 1200 V. What is the proton's speed at the end? (mp 1.67 x 10-27 kg) 4.8 x 10^5 m/s 3.4 x 10^5 m/s O 1.2 x 10^7 m/s O 3.3 x 10^6 m/s 4.1 x 10^6 m/s =arrow_forwardReview Multiple-Concept Example 4 to see the concepts that are pertinent here. In a television picture tube, electrons strike the screen after being accelerated from rest through a potential difference of 24000 V. The speeds of the electrons are quite large, and for accurate calculations of the speeds, the effects of special relativity must be taken into account. Ignoring such effects, find the electron speed just before the electron strikes the screen. VB i eTextbook and Media GO Tutorial Save for Later Attempts: 0 of 6 used Submit Answerarrow_forward
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