Mehwish Ali
Postlab 4
1. Friction does not violate the energy of conservation of law because Friction is
a force which works against the direction of speed. However, one can use
Newtons law of motion to prove this theory.
2. As Calvin passes the window wh
Question 1
3 out of 3 points
Look at Fig. 4-1 in your manual, let's say PEtot is the total potential energy of masses m1 and m2 (m1<m2). After m1 goes up by a distance d, and m2 goes down the same distance. The change in PEtot is (when something goes up
Mehwish Ali
Physics Lab-1
Lab 1: Kinematics Post lab
1. The Velocity vs. Mid time graph has a positive correlation and also has a
Constance slope. The physical quantity relates to would be gravity. By calculation
the velocities we were able to calculate t
Christina Zamora
UT EID: crz265
PHY 102M Lab 3 Post Lab Questions
1. Acceleration is less than gravity because of air resistance. Air resistance is
proportional to speed, therefore, as speed increases air resistance increases,
causing acceleration to go d
Question 1
3 out of 3 points
Pick the right descriptions for inelastic collision Answer Selected Answers:
Question 2
3 out of 3 points
Pick the right descriptions for completely elastic collision Answer Selected Answers:
Question 3
3 out of 3 points
If m
Post Lab 6
1.
We plotted sin () in order to make the graph linear. Also, sin () conveys the actual
physics of the experiment more than simply .
2.
If we used a heavier bar, the y-intercept would increase, so the whole graph would shift
upward. Since the d
Post Lab 11
1.
It started to drop because the water was giving up thermal energy to the aluminum
cylinder.
It flowed from the water to the aluminum cylinder.
It started to rise because the aluminum+water system is at a lower temperature than
the surroundi
Question 1
3 out of 3 points
When considering rotational motion there are similarities between rotational motion and translational motion. Look at the table, answer question 1&2 Translational D (displacement) V (velocity) A (acceleration) F (force) P (mo
Annie Markowitz
Post Lab 5
1.
If this was a semi truck hitting a marble, the mass of the marble would be negligible, so:
v(f)large glider = [(mlarge glider msmall glider) / (mlarge glider + msmall glider)] * v(i)large glider
v(f) large glider = (m large
Mehwish Ali
Post lab 6 questions:
1. The condition for rotational equilibrium is that the sum of all torques, about any
axis must be zero. The condition for translational equilibrium for a mass is that
the vector sum of all the forces which is the net for
FR 611 Quiz 12.1
Nom :_Prnom :_
_/10
A. Conjugate the verb within parentheses in the proper tense and form. (6 pts)
1. Il est impossible que le professeur soit (tre) en retard !
2. Je ne crois pas que tu aies (avoir) envie de venir au cinma.
3. Il est pro
Post lab 5:
1. After the students leave the lab, Ravi the TA, decides to do the experiment 5 with
a slight modification. He inclines the ramp/track (on which the carts collide) at an
angle of 45 degrees from the table. Will he be able to verify the law of
Post lab 3
1. Were your experimental acceleration values greater or less than the values you
calculated theoretically? Why?
My experimental values were less than my theoretical values because there is friction
involved which provided small force that resi
Post lab 6 questions:
1. Since the aluminum bar is motionless in our experiments, it must be in
equilibrium. What two conditions must hold for objects in translational and
rotational equilibrium (simultaneously)?
The vector sum of all forces acting on the
Post lab 9 question:
1. At what point(s) was the horizontal velocity equal to zero? At was point(s) was
the horizontal acceleration equal to zero? (use the simple pendulum setup)
Velocity is equal to zero at the endpoints of the motion, for example
when t
Prelab 2
1. Assume a coordinate just like one in Figure 2.1. Now there is a 5N
force
F1
, lying along
60
direction. Please tell me the x-
component and y-component of this force.
2. If now there is another force
F2
, lying along
120
and its
magnitude is
Postlab 5
Table: 7 Lab time: Tue. 12-2pm Name:
Postlab and lab report are to be completed individually.
1
What fraction of energy will be lost when a moving cart of mass m
inelastically collides with a stationary cart of mass 2 m ?
2
Why do we choose to m
Postlab 1
Table:_ Lab time: Tuesday 12-2 Name:
Postlab and lab report are to be completed individually.
1
What was our goal for each of these two experiments?
The goal of this experiment was to show that motion has two components,
horizontal and vertical,
Postlab 7
Table: 7 Lab time: Tue. 12-2pm Name:
Postlab and lab report are to be completed individually.
1
What was the slope and intercept of our final graph supposed to be? That's the
I vs. r 2 graph. Don't write numbers, just names.
The slope of our fin
Andrea Fonseca
aef834
Post Lab #2:
1. In the lab you saw that you could have the object at equilibrium with 2, 3 and 4 forces.
How many forces could you add and still keep the object in equilibrium?
As long as opposing forces balance each other out, theor
Postlab 4
Table: 7 Lab time: Tuesday 12-2pm Name:
Postlab and lab report are to be completed individually.
1
Why might there be a slight downslope in in the total energy instead of a flat
constant?
There are frictional energy losses causing a slight downs
Postlab 8
Table: 7 Lab time: Tue. 12-2pm Name:
Postlab and lab report are to be completed individually.
1
If you take a boat from earth and put it on a planet with twice earth's gravity,
what would happen if you tried to float it in water?
2
The density o
Postlab 7
1. Suppose we repeat the experiment with the disc that is twice the mass and half the
radius. Will the moment of inertia of the new disc be greater than, less than or equal to
the original disc? Explain by using the formula in the Lab Manual.
Th
Quiz 9
1.
(3) A mass M hangs in equilibrium on a spring. Then M is made to oscillate
about the equilibrium position. The time for M to travel back from the
maximum displacement point to the equilibrium position for the first time is
0.50 s. The period is
Quiz 10
1.
A string is clamped at both ends and plucked so creates a standing wave. If the
distance between two neighbored nodes is 10 cm. What is the wavelength of the
wave on this string?
A. 5 cm
B. 10 cm
C. 20 cm
D. 40 cm
2.
A string is clamped at both
Post lab 10 questions:
1. If you replaced the string with a light-weight thread of 1/9th its mass per unit
length, how would the frequency change?
If the linear mass density is reduced by 1/9, v is multiplied by 3, so the frequency is
multiplied by 3.
2.
Minsun Jeon
M 12-2PM
Postlab 4
1. Calvin (from Calvin and Hobbs) is standing on the top of his house with a garbage
bag parachute and he decides to test it. He jumps and the parachute doesnt do
anything (fails to open properly). Assuming there is no air r
Postlab 8
1. If you double the radius of the aluminum cylinder, how much change in the
buoyant force will be produced (assume that the cylinder is completely submerged in
the fluid and there is no change in the density)?
The buoyant force would multiply b
Quiz 11
1. (6) How much heat do you need to increase the temperature from
25 to 27 for 1 kg water and 1 kg aluminum, respectively? (The
specific heat of water is 4186 J/kg and the specific heat of
aluminum is 900 J/kg.) Check the specific heat of cooper a