Physics: Principles with Applications
7th Edition
ISBN: 9780321625922
Author: Douglas C. Giancoli
Publisher: Addison-Wesley
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Textbook Question
Chapter 16, Problem 45GP
Given that the human body is mostly made of water, estimate the total amount of positive charge in a 75-kg person.
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need help with the first part
A ball is thrown with an initial speed v, at an angle 6, with the horizontal. The horizontal range of the ball is R, and the ball reaches a maximum height R/4. In terms of R and g, find the following.
(a) the time interval during which the ball is in motion
2R
(b) the ball's speed at the peak of its path
v=
Rg 2
√ sin 26, V 3
(c) the initial vertical component of its velocity
Rg
sin ei
sin 20
(d) its initial speed
Rg
√ sin 20
×
(e) the angle 6, expressed in terms of arctan of a fraction.
1
(f) Suppose the ball is thrown at the same initial speed found in (d) but at the angle appropriate for reaching the greatest height that it can. Find this height.
hmax
R2
(g) Suppose the ball is thrown at the same initial speed but at the angle for greatest possible range. Find this maximum horizontal range.
Xmax
R√3
2
An outfielder throws a baseball to his catcher in an attempt to throw out a runner at home plate. The ball bounces once before reaching the catcher. Assume the angle at which the bounced ball leaves the ground is the same as the angle at which the outfielder threw it as shown in the figure, but that the ball's speed after the bounce is one-half of what it was before the bounce.
8
(a) Assuming the ball is always thrown with the same initial speed, at what angle & should the fielder throw the ball to make it go the same distance D with one bounce (blue path) as a ball thrown upward at 35.0° with no bounce (green path)?
24
(b) Determine the ratio of the time interval for the one-bounce throw to the flight time for the no-bounce throw.
Cone-bounce
no-bounce
0.940
Chapter 16 Solutions
Physics: Principles with Applications
Ch. 16 - Prob. 1OQCh. 16 - If you charge a pocket comb by rubbing it with a...Ch. 16 - Why does a shirt or blouse taken from a clothes...Ch. 16 - Explain why fog or rain droplets tend to form...Ch. 16 - Why does a plastic ruler that has been rubbed with...Ch. 16 - A positively charged rod is brought close to a...Ch. 16 - Prob. 6QCh. 16 - Figures 16-7 and 16-8 show how a charged rod...Ch. 16 - Prob. 8QCh. 16 - Prob. 9Q
Ch. 16 - Prob. 10QCh. 16 - Prob. 11QCh. 16 - Prob. 12QCh. 16 - Prob. 13QCh. 16 - Prob. 14QCh. 16 - Prob. 15QCh. 16 - Assume that the two opposite charges in Fig....Ch. 16 - Consider the electric field at the three points...Ch. 16 - Why can electric field lines never cross?Ch. 16 - Show, using the three rules for field lines given...Ch. 16 - Given two point charges, Q and 2Q, a distance l...Ch. 16 - Consider a small positive test charge located on...Ch. 16 - A point charge is surrounded by a spherical...Ch. 16 - Q1=0.10c is located at the origin. Q2=+0.10c is...Ch. 16 - Swap the positions of Q1 and Q2 of MisConceptual...Ch. 16 - Fred the lightning bug has a mass m and a charge...Ch. 16 - Figure 16—50 shows electric field lines due to a...Ch. 16 - A negative point charge is in an electric field...Ch. 16 - As an object acquires a positive charge, its mass...Ch. 16 - Refer to Fig. 16—32d. If the two charged plates...Ch. 16 - We wish to determine the electric field at a point...Ch. 16 - We are usually not aware of the electric force...Ch. 16 - To be safe during a lightning storm, it is best to...Ch. 16 - Which are the worst places in MisConceptual...Ch. 16 - Which vector best represents the direction of the...Ch. 16 - A small metal ball hangs from the ceiling by an...Ch. 16 - What is the magnitude of the electric force of...Ch. 16 - How many electrons make up a charge of —48.0 µC?Ch. 16 - What is the magnitude of the force a +25 µc charge...Ch. 16 - Prob. 4PCh. 16 - Prob. 5PCh. 16 - Two charged dust particles exert a force of 42102N...Ch. 16 - Two small charged spheres are 6.52 cm apart. They...Ch. 16 - A person scuffing her feet on a wool rug on a dry...Ch. 16 - What is the total charge of all the electrons in a...Ch. 16 - Prob. 10PCh. 16 - Particles of charge +65, +48, and -95 µC are...Ch. 16 - Three positive particles of equal charge, +17.0...Ch. 16 - A charge Q is transferred from an initially...Ch. 16 - Prob. 14PCh. 16 - Prob. 15PCh. 16 - Prob. 16PCh. 16 - Two small nonconducting spheres have a total...Ch. 16 - Two charges, -Q and -3Q are a distance l apart....Ch. 16 - Determine the magnitude and direction of the...Ch. 16 - A proton is released in a uniform electric field,...Ch. 16 - Determine the magnitude and direction of the...Ch. 16 - A downward electric force of 6.4 N is exerted on a...Ch. 16 - Determine the magnitude of the acceleration...Ch. 16 - Determine the magnitude and direction of the...Ch. 16 - Draw, approximately, the electric field lines...Ch. 16 - What is the electric field strength at a point in...Ch. 16 - An electron is released from rest in a uniform...Ch. 16 - The electric field midway between two equal but...Ch. 16 - Calculate the electric field at one corner of a...Ch. 16 - Calculate the electric field at the center of a...Ch. 16 - Prob. 31PCh. 16 - Prob. 32PCh. 16 - Determine the electric field E at the origin 0 in...Ch. 16 - Prob. 34PCh. 16 - Prob. 35PCh. 16 - Prob. 36PCh. 16 - Prob. 37PCh. 16 - The total electric flux from a cubical box of side...Ch. 16 - Prob. 39PCh. 16 - 40. (II) A cube of side 8.50 cm is placed in a...Ch. 16 - Prob. 41PCh. 16 - Prob. 42PCh. 16 - A point charge Q rests at the center of an...Ch. 16 - Prob. 44GPCh. 16 - Given that the human body is mostly made of water,...Ch. 16 - Prob. 46GPCh. 16 - Prob. 47GPCh. 16 - (a) The electric field near the Earth's surface...Ch. 16 - A water droplet of radius 0.018 mm remains...Ch. 16 - Prob. 50GPCh. 16 - Prob. 51GPCh. 16 - Two small charged spheres hang from cords of equal...Ch. 16 - Prob. 53GPCh. 16 - Dry air will break down and generate a spark if...Ch. 16 - Prob. 55GPCh. 16 - Prob. 56GPCh. 16 - A point charge (m = 1.0 gram) at the end of an...Ch. 16 - Prob. 58GPCh. 16 - Prob. 59GPCh. 16 - Prob. 60GPCh. 16 - Prob. 61GPCh. 16 - An electron with speed v0= 5.32 x 106 m/s is...Ch. 16 - Prob. 63GPCh. 16 - Prob. 64GPCh. 16 - Prob. 65GPCh. 16 - Determine the direction and magnitude of the...Ch. 16 - A mole of carbon contains 7.22 × 1024 electrons....
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