a. 0.078 3 N
b. 783 N
c. 2 450 N
d. 24 500 N
e. 78 300 N
Exhibit 5-2
A 4.00 kg block is suspended from the roof of an elevator. A 2.00 kg block is suspended from the 4.00 kg
block. The tensions in str
a. 2.3 III/$2
b. 4.6 III/52
c. 3.5 m/s,2
d. 2.9 1111s2
e. 5.1 III/s2
. A 5. Okg obj ect is suspended by a string from the ceiling of an elevator that IS accelerating downward at a rate
of 2 .6 mfsz. W
23.
24.
25.
26.
e. 0.27
A 2.0kg block slides on a rough horizontal surface. A force (magnitude P = 4.0 N) acting parallel to the
surface is applied to the block. The magnitude of the block's accelerat
19.
20.
21.
22.
A 6.0-kg obj ect is suspended by a vertical string from the ceiling of an elevator which is accelerating upward
at a rate of 1.8 111/32. Determine the tension in the string.
a. 11 N
b.
15.
16.
17.
18.
0- tant9= ,Uk.
(1- cowl: juk.
6- secB = M.
Two people, each of 70 kg mass, are riding in an elevator. One is standing on the oor. The other is hanging
on a rope suspended from the ceil
36.
the electromagnetic force
the strong force
the force of forward motion also known as the inertial force
Choose this answer if two of the named forces are not fundamental.
$9.99?"
An object on the
10.
11.
12.
13.
14.
6. may have any direction in the plane.
Ajuggler throws two balls up to the same height so that they pass each other halfway up when A is rising and
B is descending. Ignore air res
27.
28.
29.
30.
b. 0.80 N to the right
0. 0.40 N to the right
d. 0.80 N to the left
6. 1.20 N to the left
Two blocks are accelerated across a horizontal frictionless surface as shown. Frictional force
newton AP practice
Multiple Choice
Identyjz the choice that best completes the statement or answers the question.
1. In the gure, if the tension in string 1 is 34 N and the tension in string 2 is 24 N
Scanned by CamScanner
Scanned by CamScanner
Scanned by CamScanner
Scanned by CamScanner
Scanned by CamScanner
Scanned by CamScanner
Scanned by CamScanner
Scanned by CamScanner
Scanned by CamScanner
Scanned by CamScanner
Scanned by CamScanner
Scanned by CamScanner
Scanned by CamScanner
Scanned by CamScanner
Scanned by CamScanner
Scanned by CamScanner
Scanned by CamScanner
Scanned by CamScanner
Scanned by CamScanner
Scanned by CamScanner
Scanned by CamScanner
Scanned by CamScanner
Welcome to Physics NYB Electricity and Magnetism
Gabe Rosenbaum
Contact via MIO
Office I-309
Office hours:
Mon 12-2, Wed 2-4, Thurs 2-4
Read the course outline!
This course is going to be
Fun
Inter
Capacitance and Dielectrics
Capacitors
We have discussed capacitors as being two parallel plates with equal and opposite
charges.!
We have looked at the potential and electric field in the region betw
Magnetic Fields
Evidence of magnetism
Magnetic compasses used >3000 years ago.
Ancient Greeks knew about magnetism in early 800BC:
Ancient Chinese compass
Lodestone attacking paper clips
Today.
Why do
Faradays Law
Faradays experiments
After discovering that currents can
produce magnetic fields people started
experimenting to see if magnetic fields
could produce currents.
Faraday was trying to produ
Direct Current Circuits
Conductors in an electric field
Conductors have a sea of mobile charges
These charges are free to move
If a conductor is placed in an E-field the charges
feel forces and move i
INTEGRATIVE ACTIVITY EXERCISE
ELECTRICITY AND MAGNETISM (PHY-NYB)
In integral calculus, you learned about the process of integration. Specifically, you
conceptualized the integral as the limit of a Ri
Electric Potential and Potential Energy
Work (a review)
Remember work?
The work done on an object by a force is:
In general the path and the force do not
have to be constant
Work (a review)
Find the w
Inductance
Self-inductance
Wait a sec
If I close the switch there is a change in
the flux through the circuit.
There is therefore an induced current.
What direction is the induced current
caused by th
Physics NYB - Super Problems - Review
1)A region of space has a uniform electric field in the positive x-direction with a
magnitude of 100V/m.
a.Sketch the equipotential lines.
b.An electron is placed
Physics NYB - Magnetic Fields 1 - In class
1)What direction is the magnetic field at the point A? At point B?
!"
A!
B!
D
2)Find the vector E
= C
B
:
3)Find the vector A
= 2i + 3j
A
= 2i + 3j + 2k
Review Quiz
Q1
Rank in order from smallest to largest the electric field strengths at the
points shown near an infinite plane of positive charge.
A.
B.
C.
D.
d=e<b=c<a
a=b=c=d=e
b=c=d=e<a
a<b<c<d<e
Q2
Continuous Charge Distributions
This section of the course is what is covered in the integrative activity.
There is no new physics. Just some applications of what we have learned
(mostly just some ext
Physics NYB - Continuous Distributions 1 - In class
1)Find the total charge on each rod
!=1C/m
!2=2C/m
!1=1C/m
!1=3C/m
!1=-2C/m
0
2
!1=1C/m
4
!1=-1C/m
6
8
x [cm]
2)A charged rod lies on the x-axis bet
Physics NYB - DC Circuits 2 - In class
1)Find the equivalent resistance
R2=8!"
R1=4!"
R4=1!"
R3=2!"
2)Find the current through each resistor if the potential difference between the
ends is 143V
Physic
Physics NYB - Capacitance 1 - In class
1)A parallel plate capacitor has an area of 2.00x10-4m2 and a plate separation of
1.00mm.
a.Find the capacitance.
b.If this capacitor is connected to a 9V batter
NYB - Prelab 1 - The Multimeter
Name:
Please read the Theory section of the lab manual, and fill out the following
exercise.
The graph below shows the plot of voltage (V / V) vs current (I / mA) for a