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A. Multiple Choice Questions (11 questions, 7 points each)
1. What is the magnitude of the electric field at point A?
[sin[30°]=0.5. cos[30°]=0.87.]
@2kq/d2
9‘1
k d2
geié/dz k «13‘
33:37; 9. )
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A. Multiple Choice Questions (12 questions, 6 points each)
1. The u-bar includes mercury. What is Pgas?
(mercury=13,600 kg/m3, Pat=105 Pa.)
A) 0.8105 Pa
B) 1.0105 Pa
C) 1.4105 Pa
D) 1.6105 Pa
E) 1.8105
1.2/2 pointsAll Submissions NotesQuestion: Walker4 15.P.059.
The buildup of plaque on the walls of an artery may decrease its diameter from 1.1 cm to 0.61 cm. The speed of blood flow was 18 cm/s before reaching the region of plaque buildup. (a) Find the s
Manage this Assignment: Print Version with Answers 6
Assignment 1 (16)
Due: 11:00pm on Friday, January 29, 2010
Note: To understand how points are awarded, read your instructor's Grading Policy.
Problem 16.7
Description: The gas in a constant-volume gas t
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A. Multiple Choice Questions (12 questions, 6 points each)
1. The u-bar includes mercury. What is Pgas?
[pmerwry=13,600 kg/m3, Pat=105 Pa.)
A] 0.8x105 Pa
B) 1.0X105 Pa
@14x105 Pa
D] 1.6x105 Pa
E] 1.8><105 Pa
(pag
LECTURE 2
PASCALS PRINCIPLE
Lecture Instructor: Kazumi Tolich
Lecture 2
2
Reading chapter 11-4 to 11-6
Pressure
and depth
Pascals principle
Force and depth in static fluid
3
Consider a cylinder with a cross-sectional area of A, filled with a fluid with
last
Multiple-choice problems
I.
1. [4 pts] What is the mass of one cubic meter of air, in kilograms, at 20°C and 1.00 atm,
assuming the percentages of number of molecules N2 and 02 are 79.0% and 21.0%
respectively? [Hint Use the ideal-gas law.] '
A. 1.
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WINTER 10
PHYSICS gglls
EXAM 2
MID ,
Each problem is worth 10 points
T ._
Multiple-choice problems
I. A 2.0-mol sample ‘of an ideal monatomic gas is moved along the path ABC shown in ﬁgure,
P- with AB representing a
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PHYSICS 11 " — TER 10
MIDTERM EXAM 3
Each problem is worth 10 points
Multiple-choice problems
The wire shown in the ﬁgure carries a current equal to 1.8 A from point A to point B. The
wire is
Chapter 21
Electric Current and DirectCurrent Circuits
Today:
21-1 Electric Current
21-2 Resistance and Ohms Law
1
21-1 Electric Current
Electric current I is the flow of electric charge from one place to another.
Electric current I occurs due to a pote
Chapter 21
Electric Current and DirectCurrent Circuits
Today:
21-3 Energy and Power in
Electric Circuits
21-4 Resistors in Series and
Parallel
1
21-3 Energy and Power in Electric Circuits
When a charge moves across a potential difference, its potential
en
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(25 questions. 4 points each. Total: 100 points)
1. A raft is 3.9 m wide and 6.5 m long. When a horse is loaded onto the raft, it sinks
2.5 gm deeper into the water. What is the weight of the horse? [Assume that the raft
i
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A. Multiple Choice Questions (11 questions, 7 points each)
1. What is the magnitude of the electric field at point A?
[sin(30)=0.5. cos(30)=0.87.]
A) 2kq/d2
B) kq/d2
C) 8kq/d2
D) 4kq/d2
E) 16kq/d2
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1) Multiple choice (15 questions, 5 points each)
Use the following scenario for the next two problems.
All of the containers shown below have the same height of 0.15 m. The radius of the
circular bottom surfaces for all
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I) Multiple choice (15 questions, 5 points each)
Use the following scenario for the next two problems.
All of the containers shown below have the same height of 0.15 m. The radius of the
circular bottom surfaces for
LECTURE 6
TEMPERATURE & THERMAL
EXPANSION
Lecture Instructor: Kazumi Tolich
Lecture 6
2
Reading chapter 13-1 to 13-2.
The
zeroth law of thermodynamics
Temperature scales
Thermal expansion
Heat
3
Heat is defined as the energy transferred between objects
LECTURE 1
DENSITY & PRESSURE
Lecture Instructor: Kazumi Tolich
Lecture 1
2
Reading chapter 11-1 to 11-3
Density
Pressure
n Atmospheric
pressure and gauge pressure
Density
3
The masses of atoms and the spacing between atoms determine the density
() of ma
LECTURE 3
BUOYANCY (ARCHIMEDES
PRINCIPLE)
Lecture Instructor: Kazumi Tolich
Lecture 3
2
Reading chapter 11-7
Archimedes
principle and buoyancy
Buoyancy and Archimedes principle
3
The force exerted by a fluid on a body wholly or partially
submerged in it
Chapter 16
Temperature and Heat
16-7 Conduction, Convection, and Radiation
1
16-6 Conduction, Convection, and Radiation
Ways of heat transfer: Conduction, convection, and radiation.
1. Conduction: Flow of heat by contact.
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Chapter 21
Electric Current and DirectCurrent Circuits
Today:
21-4 Short circuit
21-5 Kirchhoffs Rules
21-6 Circuits Containing Capacitors
1
21-4 Resistors in Series and Parallel
Short circuit: Current prefers to go through a line rather
than resistors co
Clicker Question 5-1
Metals such as brass expand when heated. A thin brass plate
has a circular hole in it. When the plate is heated, what will
happen to the hole?
a)
b)
c)
d)
gets larger
gets smaller
stays the same
vanishes
Clicker Question 5-2
Two drink
Clicker Question 2-1
h
h
An open U-tube has water to a height h on both sides, as shown. A light oil (which
does not mix with water) with a density less than that of water is added to the righthand side. When equilibrium is reached, which of the following
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PHYS 115 Practice Midterm 1 (Spring 2015)
I) Multiple choice
Use the following scenario for the next two problems.
1. Water flows in the horizontal pipe shown in the figure above. The density of water is
1000 kg/m3.
Clicker Question MT1R-1
Two identical beakers are filled to the brim with water. A wooden block is
placed in Beaker a, and it floats. A metal block is placed in Beaker b, and it
sinks. (Some of the water will overflow the beakers). Both blocks have the
sa