Physics of Everyday Phenomena
9th Edition
ISBN: 9781260048469
Author: Griffith
Publisher: MCG
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Chapter 15, Problem 19CQ
We can form standing waves on a rope attached to a wall by moving the opposite end of the rope up and down at an appropriate frequency. Where does the second wave come from that interferes with the initial wave to form the standing wave? Explain.
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Maxwell's Mesh Analysis
1. The steel of the third rail of a railway system has a resistivity of 21.4 μ-cm. If its cross-sectional area
is 8.2 in², calculate the resistance per mile of rail, neglecting the effect of joints between sections. (1
point)
2. An incandescent lamp has a tungsten filament whose resistance is 96 at its operating temperature
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3. For the circuit shown, find the following:
50 V
602
10 V
702
a. the value of resistor R. (1 point)
b. the equivalent resistance with respect to the 50-V
source. (1 point)
4. For the circuit shown, determine all the currents in each branch using Kirchhoff's Laws. (3 points)
A
5V 2
В
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C
4
6 VT
ww
F
E
5. Use Maxwell's Mesh to find I, and VAB…
For items 8-9, refer to the problem below.
Find all the currents flowing in every resistor, power dissipation in
every resistor and the total power of the circuit shown at the right
using...
8. Kirchhoff's Laws (5 pts)
9. Maxwell's Mesh Analysis (5 pts)
A
8 V
10 V
B
+
20 Ω
3Ω
202
wwww
C
wwww
202
+
50
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12 V
Chapter 15 Solutions
Physics of Everyday Phenomena
Ch. 15 - A wave pulse is transmitted down a Slinky, but the...Ch. 15 - Waves are traveling in an eastward direction on a...Ch. 15 - If the magnet in the buoy described in everyday...Ch. 15 - What does rectification mean and why is it needed...Ch. 15 - A slowly moving engine bumps into a string of...Ch. 15 - A wave can be propagated on a blanket by holding...Ch. 15 - If you increase the frequency with which you are...Ch. 15 - If you increase the speed of a wave on a Slinky by...Ch. 15 - Is it possible to produce a transverse wave on a...Ch. 15 - At sporting events, the crowd sometimes generates...
Ch. 15 - Is it possible to produce a longitudinal wave on a...Ch. 15 - Suppose we double the mass per unit of length of a...Ch. 15 - Prob. 13CQCh. 15 - Prob. 14CQCh. 15 - Suppose we increase the tension in a rope, keeping...Ch. 15 - Is it possible for two waves traveling in the same...Ch. 15 - Prob. 17CQCh. 15 - Prob. 18CQCh. 15 - We can form standing waves on a rope attached to a...Ch. 15 - Prob. 20CQCh. 15 - Prob. 21CQCh. 15 - If we increase the tension of a guitar string,...Ch. 15 - Prob. 23CQCh. 15 - Prob. 24CQCh. 15 - Is it possible for sound to travel through a steel...Ch. 15 - Prob. 26CQCh. 15 - Prob. 27CQCh. 15 - Prob. 28CQCh. 15 - A band playing on a flat-bed truck is approaching...Ch. 15 - When the sound source is moving relative to the...Ch. 15 - Is it possible for sound waves to travel through a...Ch. 15 - Prob. 32CQCh. 15 - Prob. 33CQCh. 15 - What are we measuring when we perform a harmonic...Ch. 15 - How is the musical interval that we call a fifth...Ch. 15 - Prob. 36CQCh. 15 - Prob. 37CQCh. 15 - Two notes close together on the scale, such as do...Ch. 15 - Suppose that water waves coming into a dock have a...Ch. 15 - Suppose that water waves have a wavelength of 3.8...Ch. 15 - A longitudinal wave on a Slinky has a frequency of...Ch. 15 - Prob. 4ECh. 15 - A wave on a string has a speed of 11.5 m/s and a...Ch. 15 - Prob. 6ECh. 15 - A string with a length of 0.75 m is fixed at both...Ch. 15 - Suppose that the string in exercise 7 is plucked...Ch. 15 - Prob. 9ECh. 15 - What is the frequency of a sound wave with a...Ch. 15 - An organ pipe closed at one end and open at the...Ch. 15 - Suppose we start a major scale on concert A, which...Ch. 15 - If fa on a given scale has a frequency of 348 Hz,...Ch. 15 - Prob. 14ECh. 15 - If do has a frequency of 265 Hz and re a frequency...Ch. 15 - Prob. 16ECh. 15 - Prob. 17ECh. 15 - Prob. 1SPCh. 15 - A guitar string has an overall length of 1.25 m...Ch. 15 - A pipe that is open at both ends will form...Ch. 15 - For standard tuning, concert A is defined to have...Ch. 15 - Using the procedure outlined in section 15.5 where...
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- • Nature of Resistance Temperature-Resistance Relationship Ohm's Law, Energy and Power Kirchhoff's Law • Maxwell's Mesh Analysis 1. A coil of copper wire (p = 10.37 2-cmil/ft) has a length of 600 ft. What is the length of an aluminum conductor (p 17 cmil/ft), if its cross-sectional area and resistance are the same as those of the copper coil? (Hint: Look for conversion of inches to mils and square inches to square foot. Include it in your solution.) (1 pt) 2. The copper field winding of an electric machine has a resistance of 46 at temperature of 22°C. What will be its resistance at 75°C? (Use do = 0.00427 /°C for copper) (1 pt) 3. The resistivity of a copper rod 50 ft long and 0.25 inch in diameter is 1.76 μ at 20°C. What is its resistance at - 20°C? (1 pt) 4. When two resistors A and B are connected in series, the total resistance is 36 2. When connected in parallel, the total resistance is 8 Q. What is the ratio of the resistance RA to resistance RB? Assume RA < RB. (1 pt) 5. The…arrow_forward2. Two equally strong individuals, wearing exactly the same shoes decide to do a tug of war. The only difference is individual A is 2.5 meters tall and individual B is 1.5 meter tall. Who is more likely to win the tug of war?arrow_forward6. A car drives at steady speed around a perfectly circular track. (a) The car's acceleration is zero. (b) The net force on the car is zero. (c) Both the acceleration and net force on the car point outward. (d) Both the acceleration and net force on the car point inward. (e) If there is no friction, the acceleration is outward.arrow_forward
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