University Physics Volume 2
18th Edition
ISBN: 9781938168161
Author: OpenStax
Publisher: OpenStax
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Chapter 5, Problem 38P
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If 1.28 ✕ 1020 electrons move through a pocket calculator during a full day's operation, how many coulombs of charge moved through it?
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Chapter 5 Solutions
University Physics Volume 2
Ch. 5 - Check Your Understanding What would be different...Ch. 5 - Check Your Understanding What would be different...Ch. 5 - Check Your Understanding What is the electric...Ch. 5 - Check Your Understanding How would the strategy...Ch. 5 - Check Your Understanding How would the above limit...Ch. 5 - Check Your Understanding the electric field 100k...Ch. 5 - There are very large numbers of charged particles...Ch. 5 - Why do most objects tend to contain nearly equal...Ch. 5 - A positively charged It'd attracts a small piece...Ch. 5 - Two bodies attract each other electrically. Do...
Ch. 5 - How would you determine whether the charge on a...Ch. 5 - An eccentlic inventor attempts to levitate a cork...Ch. 5 - When a glass rod is lubbed with silk, it becomes...Ch. 5 - Why does a car always attract dust right after it...Ch. 5 - Does the uncharged conductor shown below...Ch. 5 - While walking on a mg, a person frequently becomes...Ch. 5 - Compare charging by conduction to charging by...Ch. 5 - Small pieces of tissue are attracted to a charged...Ch. 5 - Trucks that cany gasoline often have chains...Ch. 5 - Why do electrostatic experiments work so poorly in...Ch. 5 - Why do some clothes cling together after being...Ch. 5 - Can induction be used to produce charge on an...Ch. 5 - Suppose someone tells you that rubbing quartz with...Ch. 5 - A handheld copper rod does not acquire a charge...Ch. 5 - Suppose you place a charge q near a large metal...Ch. 5 - Would defining the charge on an electron to be...Ch. 5 - An atomic nucleus contains positively charged...Ch. 5 - Is the fore between two fixed charges influenced...Ch. 5 - When measuring an electlic field, could we use a...Ch. 5 - During fair weather, the electric field due to the...Ch. 5 - If the electric field at a point on the line...Ch. 5 - Two charges lie along the x-axis. Is it nue that...Ch. 5 - Give a plausible argument as to why the electric...Ch. 5 - Compare the electric fields of an infinite sheet...Ch. 5 - Describe the electric fields of an infinite...Ch. 5 - A negative charge is placed at center of a ring of...Ch. 5 - If a point charge is released fmm rest in a...Ch. 5 - Under what conditions, if any, will the trajectory...Ch. 5 - How would you experimentally distinguish an...Ch. 5 - A representation of an electric field shows 10...Ch. 5 - What is the ratio of the number of electlic field...Ch. 5 - What are the stable orientation(s) for a dipole in...Ch. 5 - Common static electricity involves charges ranging...Ch. 5 - If 1.801020 electrons move through a pocket...Ch. 5 - To stat a car engine, the car battery moves...Ch. 5 - A certain lightning bolt moves 40.0 C of charge....Ch. 5 - A 2.5-g copper penny is given a charge of 2.0109C...Ch. 5 - A 2.5-g copper penny is given a charge of 4.0109C...Ch. 5 - Suppose a speck of dust in an electrostatic...Ch. 5 - An amoeba has 1.001016 protons and a net charge of...Ch. 5 - A 50.0-g ball of copper has a net charge of 2.00C....Ch. 5 - What net charge would you place on a 100-g piece...Ch. 5 - How many coulombs of positive charge are there in...Ch. 5 - Two point particles with charges +3C and +5C are...Ch. 5 - Two charges +3C and +12C are fixed 1 m apart, with...Ch. 5 - In a salt crystal, the distance between adjacent...Ch. 5 - Protons in an atomic nucleus ale typically 1015 m...Ch. 5 - Suppose Earth and the Moon each carried a net...Ch. 5 - Point charges q1=50C and q2=25C are placed 1.0 m...Ch. 5 - Where must q3 of the preceding problem be placed...Ch. 5 - Two small balls, each of mass 5.0 g, are attached...Ch. 5 - Point charges q1=2.0C and q3=4.0C arelocated at...Ch. 5 - The net excess charge on two small spheres (small...Ch. 5 - Two small, identical conducting spheres repel each...Ch. 5 - A charge q=2.0C is placed at the point P shown...Ch. 5 - What is the net electric fore on the charge...Ch. 5 - Two fixed particles, each of charge 5.0106C , are...Ch. 5 - The charges q1=2.0107C, q2=4.0107C, and q3=1.0107C...Ch. 5 - What is the force on the charge q at the...Ch. 5 - Point charges q1=10C and q2=30C are fixed at...Ch. 5 - A particle of charge 2.0108C experiences an upward...Ch. 5 - On a typical clear day, the atmospheric electric...Ch. 5 - Consider an electron that is 1010 m from an alpha...Ch. 5 - Each the balls shown below carries a charge q and...Ch. 5 - What is the electric field at a point where the...Ch. 5 - A proton is suspended in the air by an electric...Ch. 5 - The electric field in a particular thundercloud is...Ch. 5 - A small piece of cork whose mass is 2.0 g is given...Ch. 5 - If the electric field is 100 N/C at a distance of...Ch. 5 - What is the electric field of a proton at the...Ch. 5 - (a) What is the electric field of an oxygen...Ch. 5 - Two point charges, q1=2.0107C and q2=6.0108C , are...Ch. 5 - Point charges q1=50C and q2=25C are placed 1.0 m...Ch. 5 - Can you arrange the two point charges q1=2.0106C...Ch. 5 - Point charges q1=q2=4.0106C are fixed on the...Ch. 5 - A thin conducting plate 1.0 m on the side is given...Ch. 5 - Calculate the magnitude and direction of the...Ch. 5 - Two thin conducting plates, each 25.0 cm on a...Ch. 5 - The charge per unit length on the thin rod shown...Ch. 5 - The charge per unit length on thin semicircular...Ch. 5 - Two thin parallel conducting plates are placed 2.0...Ch. 5 - A thin conducing plate 2.0 m on a side is given a...Ch. 5 - A total charge q is distributed uniformly along a...Ch. 5 - Charge is distributed along the entire x-axis...Ch. 5 - Charge is distributed along the entire x-axis...Ch. 5 - A rod bent into the arc of a circle subtends an...Ch. 5 - A pluton moves in the electric field E=200iN/C ....Ch. 5 - An electron and a proton, each starting from rest,...Ch. 5 - A spherical water droplet of radius 25 m carries...Ch. 5 - A proton enters the uniform electric field...Ch. 5 - Shown below is a small sphere of mass 0.25 g that...Ch. 5 - Two infinite rods, each carrying a uniform charge...Ch. 5 - Positive charge is distributed with a uniform...Ch. 5 - From a distance of 10 cm, a proton is projected...Ch. 5 - A particle of mass m and charge q moves along a...Ch. 5 - Which of the following electric field lines are...Ch. 5 - In this exercise, you practice electric field...Ch. 5 - Draw the electric field for a system of three...Ch. 5 - Two charges of equal magnitude but opposite sign...Ch. 5 - Suppose the electric field of an isolated point...Ch. 5 - Consider the equal and opposite charges shown...Ch. 5 - (a) What is the dipole moment of the configuration...Ch. 5 - A water molecule consists of two hydrogen atoms...Ch. 5 - Point charges q1=2.0C and q1=4.0C are located at...Ch. 5 - What is the force on the 5.0C charge shown below?Ch. 5 - What is the force on the charge placed at the 2.0C...Ch. 5 - Four charged particles are positioned at the...Ch. 5 - A charge Q is fixed at the origin and a second...Ch. 5 - A charge q=2.0C is released from rest when it is...Ch. 5 - What is the electric field at the midpoint M of...Ch. 5 - Find the electric field at P for the charge...Ch. 5 - (a) What is the electric field at the...Ch. 5 - Point charges are placed at the four corner of a...Ch. 5 - Three charges are positioned at the cornets of a...Ch. 5 - Prob. 119APCh. 5 - A particle of charge q and mass m is placed at the...Ch. 5 - Charge is distributed uniformly along the entire...Ch. 5 - The circular are shown below carries a charge per...Ch. 5 - Calculate the electric field due to a uniformly...Ch. 5 - The charge unit length on the thin shown below is ...Ch. 5 - The charge per unit length on the thin rod shown...Ch. 5 - The charge per unit length on the thin...
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- A sphere has a net charge of 8.05 nC, and a negatively charged rod has a charge of 6.03 nC. The sphere and rod undergo a process such that 5.00 109 electrons are transferred from the rod to the sphere. What are the charges of the sphere and the rod after this process?arrow_forwardAn electron with a speed of 3.00 106 m/s moves into a uniform electric field of magnitude 1.00 103 N/C. The field lines are parallel to the electrons velocity and pointing in the same direction as the velocity. How far does the electron travel before it is brought to rest? (a) 2.56 cm (b) 5.12 cm (c) 11.2 cm (d) 3.34 m (e) 4.24 marrow_forwardA very small ball has a mass of 5.00 103 kg and a charge of 4.00 C. What magnitude electric field directed upward will balance the weight of the ball so that the ball is suspended motionless above the ground? (a) 8.21 102 N/C (b) 1.22 104 N/C (c) 2.00 102 N/C (d) 5.11 106 N/C (e) 3.72 103 N/Carrow_forward
- (a) Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. Silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) Imagine adding electrons to the pin until the negative charge has the very large value 1.00 mC. How many electrons are added for every 109 electrons already present?arrow_forwardAn electroscope is a device used to measure the (relative) charge on an object (Fig. P23.20). The electroscope consists of two metal rods held in an insulated stand. The bent rod is fixed, and the straight rod is attached to the bent rod by a pivot. The straight rod is free to rotate. When a positively charged object is brought close to the electroscope, the straight movable rod rotates. Explain your answers to these questions: a. Why does the rod rotate in Figure P23.20? b. If the positively charged object is removed, what happens to the electroscope? c. If a negatively charged object replaces the positively charged object in Figure P23.20, what happens to the electroscope? d. If a charged object touches the top of the fixed conducting rod and is then removed, what happens to the electroscope?arrow_forwarda. In Figure 23.8, why are there three plus signs on the red rod and three minus signs on the red cloth? b. Which object in Figure 23.8 has the greatest positive charge? How do you know?arrow_forward
- A particle with charge 3.00 nC is at the origin, and a particle with negative charge of magnitude Q is at x = 50.0 cm. A third particle with a positive charge is in equilibrium at x = 20.9 cm. What is Q?arrow_forwardAn electrophorus is a device developed more than 200 years ago for the purpose of charging objects. The insulator on top of a pedestal is rubbed with a cloth, such as wool (Fig. P23.18A). A conductor is placed on top of the insulator, and the conductor is connected to ground by a conducting wire (Fig. P23.18B). (The conductor has an insulating handle, so charge cannot be transferred between the person and the conductor.) The conductor is then removed (Fig. P23.18C). The conductor may then be used to transfer charge to other objects. If the insulators charge after being Ribbed with the wool is negative, what is the charge of the conductor when it is removed?arrow_forwardA point charge of 4.00 nC is located at (0, 1.00) m. What is the x component of the electric field due to the point charge at (4.00, 2.00) m? (a) 1.15 N/C (b) 0.864 N/C (c) 1.44 N/C (d) 1.15 N/C (e) 0.864 N/Carrow_forward
- Consider the electric dipole shown in Figure P19.20. Show that the electric field at a distant point on the + x axis is Ex 4 keqa/x3.arrow_forward(a) Find the total Coulomb force on a charge of 2.00 nC located at x = 4.00 cm in Figure 18.52 (b): given that q = 1,00C . (b) Find the x-position at which the electric field is zero in Figure 18.52 (b).arrow_forwardA proton is fired from very far away directly at a fixed particle with charge q = 1.28 1018 C. If the initial speed of the proton is 2.4 105 m/s, what is its distance of closest approach to the fixed particle? The mass of a proton is 1.67 1027 kg.arrow_forward
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