Wright State University Lake Campus/2019-1/Phy2400/Notes

Week 1

1/14 (M): Class cancelled

1/15 (T): lab did to end of 2 b velocityAcceleration Now lets look at equation sheet:

1/16 (W):Did the first three units in the OER slides, finishing,

C:File:MUPHYS1 02 Vectors (Module Overview).pdf

1/17 (R): following Tuesday:

• lab did to end of 2 b velocityAcceleration
• Now lets look at equation sheet:

Week 2

MLK off 1/21(M)

1/23 (W): Mt Kilauea problem uses quadratic equation: https://cnx.org/contents/95euk-LY@1.143:aQYvRFbS@14/Projectile-Motion

MIT free body diagrams

1/29 (T): free-body-diagrams (ocw.mit.edu)

Rest of week cancelled due to weather

Week 4

2/5 (T)

Today we will try to develop test questions.

1. Available on most campus computers (including our little lab laptops)
Next we need to get Python files to improve
1. From the aforementioned wiki Click Source to get to:
2. Source Look in OSUP-1-5-unfinished to get chapter 5 questions. We begin with problem 33 at:
3. up1-5-33 Use the 3 dots and open raw to get to:
4. a python file you can save
Latex

If you have Windows and are willing to waste a lot of time download Miktex at: https://miktex.org/. But it is far simpler to upload the question only (after deleting the \ifkey footnote):

1. https://latexbase.com seems to work, at least for now.
2. I have no experience with https://www.overleaf.com/user/subscription/plans

W: Mit labs and meeting

Week 5: T2 study guide

2?/4 from 1411605 to a04DynForce Newton_sled (solutions)
3?/5 from 1411613 to a04DynForce Newton_tensions (solutions)
2?/4 from 1411601 to a04DynForce Newton_forces (solutions)
3?/5 from 1417994 to a05frictDragElast_3rdLaw (solutions)
3?/5 from 1418007 to a06uniformCircMotGravitation_friction (solutions)
2?/14 from 1411691 to a06uniformCircMotGravitation_proof (solutions)

2/11 (M)

1411605 to a04DynForce Newton_sled (solutions)
1411613 to a04DynForce Newton_tensions (solutions)
1411601 to a04DynForce Newton_forces (solutions)

2/12 (T)

Lab: Chapter 6#45 w python, attempted #61

2/13 (W)

Recitation: Discussed Friction, Problem 6.61 (rapeller), and chapter 6 slides Lecture: Study guide.

ideas for Lecture

2?/4 from 1411601 to a04DynForce Newton_forces (solutions)
3?/5 from 1417994 to a05frictDragElast_3rdLaw (solutions)
3?/5 from 1418007 to a06uniformCircMotGravitation_friction (solutions)

Week 6 Doing... T2?

I think we should postpone this test till a week from Monday.

Recitation:

Lecture:

Week 7

Differentials and energy conservation

Note dot product:

$F_{x}dx=mv_{x}dv_{x}={\tfrac {m}{2}}dv_{x}^{2}=d\left({\tfrac {1}{2}}mv_{x}^{2}\right)$ $F_{y}dy=mv_{x}dy_{y}={\tfrac {m}{2}}dv_{y}^{2}=d\left({\tfrac {1}{2}}mv_{y}^{2}\right)$ Add these equations together:

$F_{x}dx+F_{y}dy={\tfrac {m}{2}}d\left(v_{x}^{2}+v_{y}^{2}\right)$ In vector notation:

${\vec {F}}\cdot d{\vec {r}}={\tfrac {m}{2}}d({\vec {v}}\cdot {\vec {v}})=d\left({\tfrac {1}{2}}mv^{2}\right)$ 2/26 (T)

Today:

1. Get Matlab working
2. Visit Wright_State_University_Lake_Campus/2019-1/Matlab#CSVmaker
3. Be able to save a file or upload to Pilot

2/27 (W)

Energy-cart1. Got into momentum and mentioned center of mass.

Week 8:Spring Break

Spring break 3/4(M)-3/9(S)

Week 9

3/13 (W)

For reference only: using differentials to calculate a cone's moment of inertia

3/14 (R)

Lab: Integral as (Riemann) sum to get area of circle. Scripts/codes to solve problems in http://mrlawsonscience.weebly.com/uploads/1/0/9/5/10954375/unit_6_-_worksheet_-_6.5_-_torque_rotational_inertia_angular_momentum_and_kinetic_energy.docx

Week 10

3/18 (M) Quiz Planned

Today we did: Question 3 from 1418173 to a08linearMomentumCollisions (solutions)
Question 1 from 1418177 to a09staticsTorques_torque (solutions)

3/19 (T)

1. Signup for Symposium poster on writing numerical quizzes.
2. Heat engine practice

Week 12 Test 3 on Monday!!!

4/1 (M) T3 is today

1/3 from 1380215 to a07energy_cart1 (solutions)
1/3 from 1380821 to a07energy_cart2 (solutions)
1/3 from 1418173 to a08linearMomentumCollisions (solutions)
2/5 from 1418177 to a09staticsTorques_torque (solutions)
1/4 from 1412312 to a10rotationalMotionAngMom_dynamics (solutions)
1/4 from 1412355 to a11fluidStatics_buoyantForce (solutions)
1/4 from 1381800 to c07energy_lineIntegral (solutions)

4/2,4 (T,R) In your fluid class you will deal with more complexity. But for a short distance, the velocity profile is uniform. After that, ${\vec {v}}$ must be replaced by $A^{-1}\int {\vec {v}}\cdot d{\vec {A}}$ ____

Contrasts:

Week 14 Doing... T4?

4/17 (W)

1/4 from 1412312 to a10rotationalMotionAngMom_dynamics (solutions)
1/4 from 1412355 to a11fluidStatics_buoyantForce (solutions)
1/4 from 1381800 to c07energy_lineIntegral (solutions)

Not yet:

Friday: Start equation sheet!!!!

Week 15

Last day of classes is 4/27(S)

4/22 (M)

• Summer school: Try to enroll before Friday.
• Pick up formula sheet. Today we try and establish it as official.
• Tues/Thurs will problem solvins seesions. Attendance "required".
• Wed

4/23 (T)

Informal lab report: Find the acceleration of an object sliding down an inclined plane with angle θ for an object of mass m that has a kinetic coefficient of friction of μ. Explain your free body diagram with two sketches, showing first a rotated coordinate system, and second, a modified version that splits gravity into two components.

Final Exams

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