Conceptual Physical Science (6th Edition)

6th Edition

ISBN: 9780134060491

Author: Paul G. Hewitt, John A. Suchocki, Leslie A. Hewitt

Publisher: PEARSON

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Chapter 27, Problem 49E

On the Moon, stars other than the Sun can be seen during the daytime. Why?

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Chapter 27, Problem 48E

Chapter 27, Problem 50E

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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 27 Solutions

Conceptual Physical Science (6th Edition)

Ch. 27 - What are constellations?Ch. 27 - Why does an observer at a given location see one...Ch. 27 - Prob. 3RCQ Ch. 27 - Is the light-year a measurement of time or...Ch. 27 - Prob. 5RCQ Ch. 27 - Prob. 6RCQ Ch. 27 - What is an H-R diagram?Ch. 27 - Prob. 8RCQ Ch. 27 - Prob. 9RCQ Ch. 27 - Prob. 10RCQ

Ch. 27 - Prob. 11RCQ Ch. 27 - Prob. 12RCQ Ch. 27 - Prob. 13RCQ Ch. 27 - Prob. 14RCQ Ch. 27 - Prob. 15RCQ Ch. 27 - Prob. 16RCQ Ch. 27 - Prob. 17RCQ Ch. 27 - Prob. 18RCQ Ch. 27 - Prob. 19RCQ Ch. 27 - Why dont we think the Sun will eventually become a...Ch. 27 - How does the mass of a star before its collapse...Ch. 27 - If black holes are invisible, what is the evidence...Ch. 27 - Prob. 23RCQ Ch. 27 - What type of galaxy is the Milky Way?Ch. 27 - What are the consequences of galaxies colliding?Ch. 27 - What is a starburst galaxy?Ch. 27 - Prob. 27RCQ Ch. 27 - How many spiral galaxies are in the Local Group?Ch. 27 - Is the Local Group a relatively small or large...Ch. 27 - Prob. 30RCQ Ch. 27 - Prob. 34TAS Ch. 27 - The brightest star in the sky, Sirius, is about 8...Ch. 27 - If you were to travel straight up from the core of...Ch. 27 - Prob. 37TAS Ch. 27 - Prob. 38TAS Ch. 27 - Prob. 39TAS Ch. 27 - Prob. 40TAR Ch. 27 - Prob. 41TAR Ch. 27 - Prob. 42TAR Ch. 27 - Prob. 43TAR Ch. 27 - Rank the nuclear fuels in order of being consumed,...Ch. 27 - Prob. 45TAR Ch. 27 - Rank in order of increasing size: (a) solar...Ch. 27 - The 19th-century author and social commentator...Ch. 27 - Prob. 48E Ch. 27 - On the Moon, stars other than the Sun can be seen...Ch. 27 - Which figure in this chapter best shows that a...Ch. 27 - We see the constellations as distinct groups of...Ch. 27 - Prob. 52E Ch. 27 - Which moves faster from horizon to horizon: the...Ch. 27 - Prob. 54E Ch. 27 - Why does the Big Dipper change its position in the...Ch. 27 - Prob. 56E Ch. 27 - Prob. 57E Ch. 27 - Prob. 58E Ch. 27 - Why dont we see the ultraviolet color of stars?Ch. 27 - Does a blue star contain yellow light?Ch. 27 - Does a yellow star contain blue light?Ch. 27 - Prob. 62E Ch. 27 - Prob. 63E Ch. 27 - Prob. 64E Ch. 27 - Prob. 65E Ch. 27 - Prob. 66E Ch. 27 - Prob. 67E Ch. 27 - Prob. 68E Ch. 27 - Prob. 69E Ch. 27 - Prob. 70E Ch. 27 - Prob. 71E Ch. 27 - Prob. 72E Ch. 27 - Prob. 73E Ch. 27 - Prob. 74E Ch. 27 - Prob. 75E Ch. 27 - What evidence suggests that our Sun is a...Ch. 27 - Prob. 77E Ch. 27 - Prob. 78E Ch. 27 - Prob. 79E Ch. 27 - Prob. 80E Ch. 27 - Prob. 81E Ch. 27 - Prob. 82E Ch. 27 - Prob. 83E Ch. 27 - Prob. 84E Ch. 27 - Prob. 85E Ch. 27 - Prob. 86E Ch. 27 - Prob. 87E Ch. 27 - What is the difference between a black hole's...Ch. 27 - Prob. 89E Ch. 27 - Prob. 90E Ch. 27 - Prob. 91E Ch. 27 - Are there galaxies other than the Milky Way that...Ch. 27 - Prob. 93E Ch. 27 - Prob. 94E Ch. 27 - Draw an analogy between a galaxy and a forest.Ch. 27 - Draw an analogy between a galaxy and a swarm of...Ch. 27 - Compare and contrast astronomy and astrology.Ch. 27 - Project what human civilization would be like if...Ch. 27 - Prob. 99DQ Ch. 27 - Why is it important to have a science-based...Ch. 27 - Choose the BEST answer to each of the following....Ch. 27 - Prob. 2RAT Ch. 27 - The star nearest Earth is (a) Proxima Centauri....Ch. 27 - Prob. 4RAT Ch. 27 - Prob. 5RAT Ch. 27 - Prob. 6RAT Ch. 27 - Prob. 7RAT Ch. 27 - A black hole is (a) an empty region of space with...Ch. 27 - Prob. 9RAT Ch. 27 - Prob. 10RAT

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