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Physics for Scientists and Engineers
6th Edition
ISBN: 9781429281843
Author: Tipler
Publisher: MAC HIGHER
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Question
Chapter 21, Problem 52P
(a)
To determine
To Compute:Value of
(b)
To determine
To Find: The time it takes for a proton to achieve speed of
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The friends now try a homework problem.
Consider an electron, of charge magnitude e = 1.602 × 10-¹⁹ C and mass me = 9.11 x 10-31 kg, moving in an elect
field with an electric field magnitude E = 7 x 10² N/C, similar to what Thana observed in the simulation. Let the leng
the plates be L = 50 cm, and the distance between them be d = 20 cm. Find the maximum speed, v, the electron co
be moving if it enters the space halfway between and parallel to the two plates to just barely strike one of the plates
7.01e+06 X m/s
If the field is pointing upward, which plate will Thana conclude the electron strikes at this speed?
The lower plate, because the electron is negatively charged.
The lower plate, because the electron is attracted to the negative plate.
The upper plate, because we are only considering the magnitude of the electron charge, and magnitudes are
always positive.
O
The upper plate, because the electron charge magnitude is positive.
(!) THE FOLLOWING QUESTIONS ARE BASED ON THE
INFORMATION GIVEN BELOW.
vo
An electron at point A as shown in the figure has a speed
vo = 1.9 x 10° m/s. The distance between points A and B is
given as l = 6 cm.
A
B
(Mass and charge of the electron are m, = 9.109 × 10 31 kg and
qe = 1.602 x 10 19 C, respectively.)
B) Find the time, in units of nanoseconds, required for the electron to move from A to B.
Answer:
need help solving for C
A constant electric field accelerates a proton from rest through a distance of 1.55 m to a speed of 1.97 ✕ 105 m/s. (The mass and charge of a proton are
mp = 1.67 ✕ 10−27 kg
and
qp = e = 1.60 ✕ 10−19 C.)
HINT
(a)
Find the change in the proton's kinetic energy (in J).
3.24E-17 J
(b)
Find the change in the system's electric potential energy (in J).
The work done by the electric force and the change in electric potential energy are related by
WFe = −ΔPE.
This relationship holds for any conservative force: the work done by any conservative force equals the negative of the change in the associated potential energy. -3.24E-17J
(c)
Calculate the magnitude of the electric field (in N/C).
N/C
Chapter 21 Solutions
Physics for Scientists and Engineers
Ch. 21 - Prob. 1PCh. 21 - Prob. 2PCh. 21 - Prob. 3PCh. 21 - Prob. 4PCh. 21 - Prob. 5PCh. 21 - Prob. 6PCh. 21 - Prob. 7PCh. 21 - Prob. 8PCh. 21 - Prob. 9PCh. 21 - Prob. 10P
Ch. 21 - Prob. 11PCh. 21 - Prob. 12PCh. 21 - Prob. 13PCh. 21 - Prob. 14PCh. 21 - Prob. 15PCh. 21 - Prob. 16PCh. 21 - Prob. 17PCh. 21 - Prob. 18PCh. 21 - Prob. 19PCh. 21 - Prob. 20PCh. 21 - Prob. 21PCh. 21 - Prob. 22PCh. 21 - Prob. 23PCh. 21 - Prob. 24PCh. 21 - Prob. 25PCh. 21 - Prob. 26PCh. 21 - Prob. 27PCh. 21 - Prob. 28PCh. 21 - Prob. 29PCh. 21 - Prob. 30PCh. 21 - Prob. 31PCh. 21 - Prob. 32PCh. 21 - Prob. 33PCh. 21 - Prob. 34PCh. 21 - Prob. 35PCh. 21 - Prob. 36PCh. 21 - Prob. 37PCh. 21 - Prob. 38PCh. 21 - Prob. 39PCh. 21 - Prob. 40PCh. 21 - Prob. 41PCh. 21 - Prob. 42PCh. 21 - Prob. 43PCh. 21 - Prob. 44PCh. 21 - Prob. 45PCh. 21 - Prob. 46PCh. 21 - Prob. 47PCh. 21 - Prob. 48PCh. 21 - Prob. 49PCh. 21 - Prob. 50PCh. 21 - Prob. 51PCh. 21 - Prob. 52PCh. 21 - Prob. 53PCh. 21 - Prob. 54PCh. 21 - Prob. 55PCh. 21 - Prob. 56PCh. 21 - Prob. 57PCh. 21 - Prob. 58PCh. 21 - Prob. 59PCh. 21 - Prob. 60PCh. 21 - Prob. 61PCh. 21 - Prob. 62PCh. 21 - Prob. 63PCh. 21 - Prob. 64PCh. 21 - Prob. 65PCh. 21 - Prob. 66PCh. 21 - Prob. 67PCh. 21 - Prob. 68PCh. 21 - Prob. 69PCh. 21 - Prob. 70PCh. 21 - Prob. 71PCh. 21 - Prob. 72PCh. 21 - Prob. 73PCh. 21 - Prob. 74PCh. 21 - Prob. 75PCh. 21 - Prob. 76PCh. 21 - Prob. 77PCh. 21 - Prob. 78PCh. 21 - Prob. 79PCh. 21 - Prob. 80PCh. 21 - Prob. 81PCh. 21 - Prob. 82PCh. 21 - Prob. 83PCh. 21 - Prob. 84PCh. 21 - Prob. 85PCh. 21 - Prob. 86PCh. 21 - Prob. 87P
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