Problem 1 (25 points)
Consider the conguration of point charges shown below, with
two negative charges -Qo and a positive charge +Qo forming a
equilateral triangle (all sides have length d) in the x-y plane.
(a) What is the direction and magnitude of the
HW Solutions # 5 - 8.01 MIT - Prof. Kowalski
Friction, circular dynamics, and Work-Kinetic Energy.
1) 5.80
If the block were to remain at rest relative to the truck, the friction force would need to cause an acceleration of 2.20 m/s2 , ;However, the maxim
Problem 1: Dynamics (15 pts)
Two blocks of mass m1 and m2 are put on a frictionless level surface as shown in the gure below.
The static coecient of friction between the two blocks is . A force F acts on the top block m1 .
m1
no friction
F
m2
(a) When the
Your Name_Section_
HOMEWORK #5 - 8.01 MIT - Prof. Kowalski
Due 4:00PM Thursday Oct. 9, 2003
Topics: Friction, circular dynamics, and Work-Kinetic Energy
Any following problems designated with a bold number indicate problems from Young
and Freedman 11th ed
HW Solutions # 6 - 8.01 MIT - Prof. Kowalski
Potential Energy and Mechanical Energy Conservation.
NOTE: We made a mistake on the solution sheet for HW #5. On part d of problem 5 on HW #5 we omitted the work due to 2 2 friction. If you submitted the answer
Problem 1 (25 points)
Consider the configuration of point charges shown below, with
two negative charges -Q0 and a positive charge +Q0 forming a
equilateral triangle (all sides have length d) in the x-y plane.
(a) What is the direction and magnitude of th
MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Physics Department
8.044 Statistical Physics I
Spring Term 2003
Practice Exam #1
Problem 1 (35 points) Clearing Impurities
p(x)
1/3
0
a
x
In an eort to clear impurities from a fabricated nano-wire a laser beam is swep