EBK PHYSICS
5th Edition
ISBN: 9780134051796
Author: Walker
Publisher: YUZU
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Question
Chapter 16, Problem 3CQ
To determine
Whether the statement that a hot object contains more heat than a cold object is valid or not.
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Students have asked these similar questions
4.) The diagram shows the electric field lines of a positively charged conducting sphere of
radius R and charge Q.
A
B
Points A and B are located on the same field line.
A proton is placed at A and released from rest. The magnitude of the work done by the electric field in
moving the proton from A to B is 1.7×10-16 J. Point A is at a distance of 5.0×10-2m from the centre of
the sphere. Point B is at a distance of 1.0×10-1 m from the centre of the sphere.
(a) Explain why the electric potential decreases from A to B. [2]
(b) Draw, on the axes, the variation of electric potential V with distance r from the centre of the
sphere.
R
[2]
(c(i)) Calculate the electric potential difference between points A and B. [1]
(c(ii)) Determine the charge Q of the sphere. [2]
(d) The concept of potential is also used in the context of gravitational fields. Suggest why scientists
developed a common terminology to describe different types of fields. [1]
3.) The graph shows how current I varies with potential difference V across a component X.
904
80-
70-
60-
50-
I/MA
40-
30-
20-
10-
0+
0
0.5
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
VIV
Component X and a cell of negligible internal resistance are placed in a circuit.
A variable resistor R is connected in series with component X. The ammeter reads 20mA.
4.0V
4.0V
Component X and the cell are now placed in a potential divider circuit.
(a) Outline why component X is considered non-ohmic. [1]
(b(i)) Determine the resistance of the variable resistor. [3]
(b(ii)) Calculate the power dissipated in the circuit. [1]
(c(i)) State the range of current that the ammeter can measure as the slider S of the potential divider
is moved from Q to P. [1]
(c(ii)) Describe, by reference to your answer for (c)(i), the advantage of the potential divider
arrangement over the arrangement in (b).
1.) Two long parallel current-carrying wires P and Q are separated by 0.10 m. The current in wire P is 5.0 A.
The magnetic force on a length of 0.50 m of wire P due to the current in wire Q is 2.0 × 10-s N.
(a) State and explain the magnitude of the force on a length of 0.50 m of wire Q due to the current in P. [2]
(b) Calculate the current in wire Q. [2]
(c) Another current-carrying wire R is placed parallel to wires P and Q and halfway between them as shown.
wire P
wire R
wire Q
0.05 m
0.05 m
The net magnetic force on wire Q is now zero.
(c.i) State the direction of the current in R, relative to the current in P.[1]
(c.ii) Deduce the current in R. [2]
Chapter 16 Solutions
EBK PHYSICS
Ch. 16.1 - Prob. 1EYUCh. 16.2 - Is the size of a degree in the Fahrenheit scale...Ch. 16.3 - The following systems consist of a metal rod with...Ch. 16.4 - Prob. 4EYUCh. 16.5 - Prob. 5EYUCh. 16.6 - The following systems consist of a cylindrical...Ch. 16 - Prob. 1CQCh. 16 - Prob. 2CQCh. 16 - Prob. 3CQCh. 16 - If the glass in a glass thermometer had the same...
Ch. 16 - Prob. 5CQCh. 16 - Sometimes the metal lid on a glass jar has been...Ch. 16 - Prob. 7CQCh. 16 - The specific heat of concrete is greater than that...Ch. 16 - When you touch a piece of metal and a piece of...Ch. 16 - The rate of heat flow through a slab does not...Ch. 16 - Prob. 11CQCh. 16 - Updrafts of air allow hawks and eagles to glide...Ch. 16 - BIO The fur of polar bears consists of hollow...Ch. 16 - Object 2 has twice the emissivity of object 1,...Ch. 16 - Prob. 1PCECh. 16 - Prob. 2PCECh. 16 - Incandescent lightbulbs heat a tungsten filament...Ch. 16 - Normal body temperature for humans is 98.6 F. What...Ch. 16 - The temperature at the surface of the Sun is about...Ch. 16 - One day you notice that the outside temperature...Ch. 16 - The gas in a constant-volume gas thermometer has a...Ch. 16 - Prob. 8PCECh. 16 - Greatest Change in Temperature A world record for...Ch. 16 - Prob. 10PCECh. 16 - Prob. 11PCECh. 16 - When the bulb of a constant-volume gas thermometer...Ch. 16 - Bimetallic strip A is made of copper and steel;...Ch. 16 - Prob. 14PCECh. 16 - Predict/Explain A brass plate has a circular hole...Ch. 16 - Figure 16-25 shows five metal plates, all at the...Ch. 16 - Longest Suspension Bridge The worlds longest...Ch. 16 - A vinyl siding panel for a house is installed on a...Ch. 16 - A cylinder bore in an aluminum engine block has a...Ch. 16 - Prob. 20PCECh. 16 - At 18.75 C a brass sleeve has an inside diameter...Ch. 16 - Early in the morning, when the temperature is 5.5...Ch. 16 - Some cookware has a stainless steel interior ( =...Ch. 16 - Predict/Calculate You construct two wire-frame...Ch. 16 - A metal ball that is 1.2 m in diameter expands by...Ch. 16 - A copper ball with a radius of 1.7 cm is heated...Ch. 16 - Predict/Calculate An aluminum saucepan with a...Ch. 16 - Prob. 28PCECh. 16 - BIO An exercise machine indicates that you have...Ch. 16 - BIO A certain sandwich cookie contains 53 C of...Ch. 16 - BIO During a workout, a person repeatedly lifts a...Ch. 16 - Prob. 32PCECh. 16 - BIO It was shown in Example 16-18 that a typical...Ch. 16 - Predict/Explain Two objects are made of the same...Ch. 16 - Prob. 35PCECh. 16 - Prob. 36PCECh. 16 - Prob. 37PCECh. 16 - A 9.7-g lead bullet is fired into a fence post....Ch. 16 - Prob. 39PCECh. 16 - Prob. 40PCECh. 16 - A 225-g lead ball at a temperature of 81.2 C is...Ch. 16 - If 2200 J of heat are added to a 190-g object, its...Ch. 16 - Chips by the Ton Tortilla chips are manufactured...Ch. 16 - Prob. 44PCECh. 16 - To determine the specific heat of an object, a...Ch. 16 - Predict/Calculate A student drops a 0.33-kg piece...Ch. 16 - Prob. 47PCECh. 16 - Predict/Explain In a popular lecture...Ch. 16 - Figure 16-27 shows a composite slab of three...Ch. 16 - Figure 16-28 Problem 50 50. CE Heat is...Ch. 16 - Predict/Explain Two identical bowls of casserole...Ch. 16 - Two bowls of soup with identical temperatures are...Ch. 16 - A glass window 0.33 cm thick measures 81 cm by 39...Ch. 16 - BIO Assuming your skin temperature is 37.2 C and...Ch. 16 - Find the heat that flows in 1.0 s through a lead...Ch. 16 - Consider a double-paned window consisting of two...Ch. 16 - Predict/Calculate Two metal rods of equal...Ch. 16 - Two cylindrical metal rodsone copper, the other...Ch. 16 - Prob. 59PCECh. 16 - Predict/Calculate Consider two cylindrical metal...Ch. 16 - A copper rod 85 cm long is used to poke a fire....Ch. 16 - Two identical objects are placed in a room at 24...Ch. 16 - A block has the dimensions L, 2L, and 3L. When one...Ch. 16 - Prob. 64GPCh. 16 - CE A copper ring stands on edge with a metal rod...Ch. 16 - CE Referring to the copper ring in the previous...Ch. 16 - Prob. 67GPCh. 16 - Making Steel Sheets In the continuous-caster...Ch. 16 - The Coldest Place in the Universe The Boomerang...Ch. 16 - BIO The Hottest Living Things From the surreal...Ch. 16 - Thermal energy is added to 180 g of water at a...Ch. 16 - Prob. 72GPCh. 16 - BIO Brain Power As you read this problem, your...Ch. 16 - BIO Brain Food Your brain consumes about 22 W of...Ch. 16 - BIO The Cricket Thermometer The rate of chirping...Ch. 16 - Predict/Calculate A pendulum consists of a large...Ch. 16 - Prob. 77GPCh. 16 - A256-kg rock sits in full sunlight on the edge of...Ch. 16 - Prob. 79GPCh. 16 - Thermal Storage Solar heating of a house is much...Ch. 16 - Pave It Over Suppose city 1 leaves an entire block...Ch. 16 - Prob. 82GPCh. 16 - You turn a crank on a device similar to that shown...Ch. 16 - Prob. 84GPCh. 16 - The Solar Constant The surface of the Sun has a...Ch. 16 - Bars of two different metals are bolted together,...Ch. 16 - A grandfather clock has a simple brass pendulum of...Ch. 16 - Prob. 88GPCh. 16 - A layer of ice has formed on a small pond. The air...Ch. 16 - A Double-Paned Window An energy-efficient...Ch. 16 - Cool Medicine In situations in which the brain is...Ch. 16 - Cool Medicine In situations in which the brain is...Ch. 16 - Cool Medicine In situations in which the brain is...Ch. 16 - Prob. 94PPCh. 16 - Referring to Example 16-12 Suppose the mass of the...Ch. 16 - Referring to Example 16-12 Suppose the initial...Ch. 16 - Prob. 97PPCh. 16 - Predict/Calculate Referring to Example 16-16...
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