Homework Help is Here – Start Your Trial Now!
Science
Physics
Write your answers on your own paper with your name and the version number of this assessment at the top. Each question is worth 3 points unless stated otherwise. B₁ B2 B2 • Elementary charge: 1.6 x 10-19 C k = = 1 Απερ = 9.0 × 109 N m² B₁ B₁ 2 2 B3 B2 B3 B3 3 4 Figure 1 3 Figure 2 3 Figure 3 1. Choosing from figures 1, 2, and 3 above, in which case will bulb B₁ be the dimmest if all the bulbs and batteries in all the circuits are identical? 2. Focusing on Figure 2, if all the bulbs are identical, how does V12, the potential difference between points 1 and 2, compare to V23, the potential difference between points 2 and 3? a) V12 < V23 V23 b) V12 > Vol bourgi ai c) V12 = V23 4. 3. Assuming an ideal battery and that all the bulbs and batteries in all the circuits are identical, in which of the circuits above does the battery supply the greatest current? In the circuit to the right, the bat- tery is 12 V, R₁ = 60, R2 = 120, and R3 = 80. Find the voltage drop across each resistor, the current through each resistor, and the power provided by the battery to run the circuit. R₁ R2 In R3 5. What would the cross-sectional area need to be for copper wire (conductivity = 5.9 x 107 (2m)-1) in order to create a 1002 resistor using a 100 m length of wire? 6. In class we discussed a "knight and barn" problem where the knight held a 20 m long lance and the barn was 12 m long. We found that the lance would momentarily fit inside the barn if the speed of the knight was ẞ= 0.8. boldal (a) Show that length contraction does indeed predict that the lance will be measured to be 12 m long by observers at rest relative to the barn. (b) Determine the length of the barn as measured by the knight. al (s) bid 1A (d)

Write your answers on your own paper with your name and the version number of this assessment at the top. Each question is worth 3 points unless stated otherwise. B₁ B2 B2 • Elementary charge: 1.6 x 10-19 C k = = 1 Απερ = 9.0 × 109 N m² B₁ B₁ 2 2 B3 B2 B3 B3 3 4 Figure 1 3 Figure 2 3 Figure 3 1. Choosing from figures 1, 2, and 3 above, in which case will bulb B₁ be the dimmest if all the bulbs and batteries in all the circuits are identical? 2. Focusing on Figure 2, if all the bulbs are identical, how does V12, the potential difference between points 1 and 2, compare to V23, the potential difference between points 2 and 3? a) V12 < V23 V23 b) V12 > Vol bourgi ai c) V12 = V23 4. 3. Assuming an ideal battery and that all the bulbs and batteries in all the circuits are identical, in which of the circuits above does the battery supply the greatest current? In the circuit to the right, the bat- tery is 12 V, R₁ = 60, R2 = 120, and R3 = 80. Find the voltage drop across each resistor, the current through each resistor, and the power provided by the battery to run the circuit. R₁ R2 In R3 5. What would the cross-sectional area need to be for copper wire (conductivity = 5.9 x 107 (2m)-1) in order to create a 1002 resistor using a 100 m length of wire? 6. In class we discussed a "knight and barn" problem where the knight held a 20 m long lance and the barn was 12 m long. We found that the lance would momentarily fit inside the barn if the speed of the knight was ẞ= 0.8. boldal (a) Show that length contraction does indeed predict that the lance will be measured to be 12 m long by observers at rest relative to the barn. (b) Determine the length of the barn as measured by the knight. al (s) bid 1A (d)

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
See similar textbooks
icon
Related questions
Question

I need help on question 4?

Write your answers on your own paper with your name and the version number of this assessment at the top. Each question is worth 3 points unless stated otherwise. B₁ B2 B2 • Elementary charge: 1.6 x 10-19 C k = = 1 Απερ = 9.0 × 109 N m² B₁ B₁ 2 2 B3 B2 B3 B3 3 4 Figure 1 3 Figure 2 3 Figure 3 1. Choosing from figures 1, 2, and 3 above, in which case will bulb B₁ be the dimmest if all the bulbs and batteries in all the circuits are identical? 2. Focusing on Figure 2, if all the bulbs are identical, how does V12, the potential difference between points 1 and 2, compare to V23, the potential difference between points 2 and 3? a) V12 < V23 V23 b) V12 > Vol bourgi ai c) V12 = V23 4. 3. Assuming an ideal battery and that all the bulbs and batteries in all the circuits are identical, in which of the circuits above does the battery supply the greatest current? In the circuit to the right, the bat- tery is 12 V, R₁ = 60, R2 = 120, and R3 = 80. Find the voltage drop across each resistor, the current through each resistor, and the power provided by the battery to run the circuit. R₁ R2 In R3 5. What would the cross-sectional area need to be for copper wire (conductivity = 5.9 x 107 (2m)-1) in order to create a 1002 resistor using a 100 m length of wire? 6. In class we discussed a "knight and barn" problem where the knight held a 20 m long lance and the barn was 12 m long. We found that the lance would momentarily fit inside the barn if the speed of the knight was ẞ= 0.8. boldal (a) Show that length contraction does indeed predict that the lance will be measured to be 12 m long by observers at rest relative to the barn. (b) Determine the length of the barn as measured by the knight. al (s) bid 1A (d)
Transcribed Image Text:Write your answers on your own paper with your name and the version number of this assessment at the top. Each question is worth 3 points unless stated otherwise. B₁ B2 B2 • Elementary charge: 1.6 x 10-19 C k = = 1 Απερ = 9.0 × 109 N m² B₁ B₁ 2 2 B3 B2 B3 B3 3 4 Figure 1 3 Figure 2 3 Figure 3 1. Choosing from figures 1, 2, and 3 above, in which case will bulb B₁ be the dimmest if all the bulbs and batteries in all the circuits are identical? 2. Focusing on Figure 2, if all the bulbs are identical, how does V12, the potential difference between points 1 and 2, compare to V23, the potential difference between points 2 and 3? a) V12 < V23 V23 b) V12 > Vol bourgi ai c) V12 = V23 4. 3. Assuming an ideal battery and that all the bulbs and batteries in all the circuits are identical, in which of the circuits above does the battery supply the greatest current? In the circuit to the right, the bat- tery is 12 V, R₁ = 60, R2 = 120, and R3 = 80. Find the voltage drop across each resistor, the current through each resistor, and the power provided by the battery to run the circuit. R₁ R2 In R3 5. What would the cross-sectional area need to be for copper wire (conductivity = 5.9 x 107 (2m)-1) in order to create a 1002 resistor using a 100 m length of wire? 6. In class we discussed a "knight and barn" problem where the knight held a 20 m long lance and the barn was 12 m long. We found that the lance would momentarily fit inside the barn if the speed of the knight was ẞ= 0.8. boldal (a) Show that length contraction does indeed predict that the lance will be measured to be 12 m long by observers at rest relative to the barn. (b) Determine the length of the barn as measured by the knight. al (s) bid 1A (d)
Expert Solution
steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
College Physics
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
University Physics (14th Edition)
University Physics (14th Edition)
Physics
ISBN:
9780133969290
Author:
Hugh D. Young, Roger A. Freedman
Publisher:
PEARSON
Introduction To Quantum Mechanics
Introduction To Quantum Mechanics
Physics
ISBN:
9781107189638
Author:
Griffiths, David J., Schroeter, Darrell F.
Publisher:
Cambridge University Press
Physics for Scientists and Engineers
Physics for Scientists and Engineers
Physics
ISBN:
9781337553278
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:
9780321820464
Author:
Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:
Addison-Wesley
College Physics: A Strategic Approach (4th Editio…
College Physics: A Strategic Approach (4th Editio…
Physics
ISBN:
9780134609034
Author:
Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:
PEARSON
SEE MORE TEXTBOOKS