Pearson eText -- Physics for Scientists and Engineers with Modern Physics -- Instant Access (Pearson+)
5th Edition
ISBN: 9780137488179
Author: Douglas Giancoli
Publisher: PEARSON+
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Textbook Question
Chapter 23, Problem 55P
(I) What potential difference is needed to give a helium nucleus (Q = 3.2 × 10−19 C) 125 keV or kinetic energy?
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(II) What is the speed of an electron with kinetic energy(a) 850 eV, and (b) 0.50 keV?
What potential difference is needed to give a helium nucleus (Q=3.2×10−19CQ=3.2×10^-19C) 124 keV of kinetic energy?
Express your answer using two significant figures.
In 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)
Chapter 23 Solutions
Pearson eText -- Physics for Scientists and Engineers with Modern Physics -- Instant Access (Pearson+)
Ch. 23.1 - Prob. 1AECh. 23.2 - Prob. 1BECh. 23.3 - Prob. 1CECh. 23.3 - Prob. 1DECh. 23.8 - Prob. 1FECh. 23.8 - Prob. 1GECh. 23 - If two points are at the same potential, does this...Ch. 23 - If a negative charge is initially at rest in an...Ch. 23 - State clearly the difference (a) between electric...Ch. 23 - Suppose the charged ring of Example 238 was not...
Ch. 23 - Consider a metal conductor in the shape of a...Ch. 23 - Equipotential lines are spaced 1.00 V apart. Does...Ch. 23 - Prob. 1PCh. 23 - Prob. 3PCh. 23 - Prob. 4PCh. 23 - Prob. 9PCh. 23 - Prob. 11PCh. 23 - (II) The electric potential of a very large...Ch. 23 - (II) The Earth produces an inwardly directed...Ch. 23 - (II) A 32-cm-diameter conducting sphere is charged...Ch. 23 - (II) An insulated spherical conductor of radius r1...Ch. 23 - (II) Determine the difference in potential between...Ch. 23 - (II) Suppose the end of your finger is charged....Ch. 23 - (II) Estimate the electric field in the membrane...Ch. 23 - (III) A hollow spherical conductor, carrying a net...Ch. 23 - (III) A very long conducting cylinder (length ) of...Ch. 23 - Prob. 31PCh. 23 - (I) Draw a conductor in the shape of a football....Ch. 23 - (II) Equipotential surfaces are to be drawn 100 V...Ch. 23 - (II) Calculate the electric potential due to a...Ch. 23 - (III) The dipole moment, considered as a vector,...Ch. 23 - (I) Show that the electric field of a single point...Ch. 23 - (I) What is the potential gradient just outside...Ch. 23 - (II) The electric potential between two parallel...Ch. 23 - () The electric potential in a region of space...Ch. 23 - (II) In a certain region of space, the electric...Ch. 23 - (II) A dust particle with mass of 0.050 g and a...Ch. 23 - (III) Use the results or Problems 38 and 39 to...Ch. 23 - (I) How much work must be done to bring three...Ch. 23 - (I) What potential difference is needed to give a...Ch. 23 - If the electrons in a single raindrop, 3.5 mm in...Ch. 23 - By rubbing a nonconducting material, a charge of...
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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
- Check Your Understanding What is the potential energy of Q relative to the zero reference at infinity at r2 in the above example?arrow_forwardIf a proton is released from rest in an electric field, will it move in the direction of increasing or decreasing potential? Also answer this question for an electron and a neutron. Explain why.arrow_forwardHow many electrons should be removed from an initially uncharged spherical conductor of radius 0.300 m to produce a potential of 7.50 kV at the surface?arrow_forward
- What potential difference is needed to give a helium nucleus (Q=2e)(Q=2e) 75.0 keV of kinetic energy?arrow_forward(I) What potential difference is needed to give a helium nucleus(Q=2e) 85.0 keV of kinetic energy?arrow_forwardAn electron is released from rest at the negative plate in a parallel plate apparatus kept under vacuum andmaintained a potential difference of 2.50 X 10^2 V. With what speed does the electron collide with the positiveplate?(m = 9.11 x 10^-31kg, q = −1.6 x 10^-19C)arrow_forward
- In a television picture tube, electrons strike the screen after being accelerated from rest through a potential difference of 25 000 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, fi nd the electron speed just before the electron strikes the screen.arrow_forward(II) What is the speed of a proton whose KE is 4.2 keV?arrow_forwardWe increase the magnitude of the electric field to E = 119 v/m and repeat the experiment with the same Q = +5.40C particle. Calculate the net change in the electric potential energy [Be sure the sign of your answer accurately reflects whether the particle gained or lost potential energy in moving from point (A) to point(B) in this experiment]arrow_forward
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