Final evaluation, foundations of modern physics

Dear students, I leave you your final marks, I have had the honor of working with you, I wish you much success in the future.

Extraordinary examination, Friday May 4, 12h., computational geophysics laboratory

CABALLERO CUERVO, KARLA P.

201405570

10

CANO ESCANDON, GUADALUPE

201429902

extraordinario

CHALTELL ROMERO, MARTIN J.

201421280

10

CORDOVA ORTEGA, JESUS A.

201413197

10

ESQUIVEL RIOS, LLUVIA I.

201413294

10

GARCIA GUERRERO, DIANA I.

201441858

9

GONZALEZ CALIXTO, ANA R.

201421500

10

HUERTA ROSALES, LIZBETH

201449481

8

ISLAS MARQUEZ, DAYANE L.

201449447

10

JUAREZ MORALES, KARLA R.

201317557

10

MEJIA MUNGUIA, JOSE A.

201419906

8

ROSALES DOMINGUEZ, ANDREA

201322088

10

VIVANCO DAVILA, DIEGO A.

201530177

10

ZAMORA LOPEZ, JOSUE A.

201334379

extraordinario

Calificaciones de teoría electromagnética

Estimados compañeros del curso de TEM, en las siguiente tabla encontrarán las notas finales del curso.

Ha sido un honor estar con ustedes, éxito en sus siguientes cursos y fuerte abrazo

1	CAMARILLO GONZALEZ, ALEJANDRO	201441024	9
2	DE LA CRUZ ALVARADO, MELISSA	201213044	extraordinario
3	OROZCO FERRER, OMAR M.	201502510	8
4	ORTEGA VARGAS, AMETH J.	201406939	extraordinario
5	REYES VENTURA, RICHARD	201501078	9
6	SANCHEZ SANCHEZ, ILSE N.	201547589	9
7	SOMELLERA TORRES, JOSE L.	201518549	9

El examen extraordinario será el día viernes a las 12:00 PM, en el laboratorio de geofísica computacional.

Rotational Kinematics

Dear students of the kinematics and dynamics course, I was not able to upload the file to the blogger last Friday, so you must deliver it next Tuesday.

Practice

1. A rifle is a long gun whose barrel has been grooved or "rifled" on the inside with spiral channels. (For comparison, a long gun with a smooth bore is called a musket.) Bullets fired from a rifled barrel spin. This gives them greater stability in flight and thus greater accuracy when fired. Since 1964, the standard infantry weapon in the US Army has been the .22 caliber M16 rifle. Due to rifling, a bullet fired from an M16 rotates two and a half times on its journey from the breech to the muzzle. Given a barrel length of 510 mm and a muzzle velocity of 950 m/s, determine…

a.                  the average translational acceleration,

b.                  the average angular acceleration (in radians per second squared), and

c.                   the final angular velocity (in rotations per second)

Best regards, you are having an excellent weekend

Best regards, you
are having an excellent weekend

Best regards, you
are having an excellent weekend

Best regards, you
are having an excellent weekend

Modern physics quiz

Hello dear students, print the document and present it in class.

Thank you

Please be clear and well-organized in all your steps.

1. Gold has a work function of 4.83 eV.

(a) What is the value of the threshold frequency? I.e., what is the lowest frequency for electromagnetic radiation incident on a gold surface if photoelectrons are to be emitted in the photoelectric effect? Answer ___________

(b) Now suppose that ultraviolet light with a wavelength of 150 nm shines on a gold surface. What is the stopping potential? I.e., what is the potential of the collector relative to the emitter which will barely prevent electrons from making it to the collector and producing a current? Answer ___________

2. Our Sun has a surface temperature of about 6000 K. A particular blue giant has a surface temperature of 30,000 K. And a particular red dwarf has a surface temperature of 3000 K.

(a) For each of these stars, determine λmax , the wavelength at the peak in the plot of intensity versus wavelength. Sun ______________ blue giant _____________ red dwarf _____________

Retroalimentación, cinemática y dinámica

Favor de imprimir de la siguiente liga:

https://physics.info/motion-graphs/practice.shtml

saludos

Course of kinematics and dynamics, textile engineering

Very appreciable students of textile engineering

Solve the following problems (as completely as possible): 

1. The graph below shows velocity as a function of time for some unknown object.
   
   1. What can we say about the motion of this object?
   2. Plot the corresponding graph of acceleration as a function of time.
   3. Plot the corresponding graph of displacement as a function of time.
2. Sketch the displacement-time, velocity-time, and acceleration-time graphs for…
1. an object moving with constant velocity. (Let the initial displacement be zero.)
2. an object moving with constant acceleration. (Let the initial displacement and velocity be zero.)

send it next March 14, to the email: jose.gogu@outlook.com

Very successful, I see you next week

Curso de cinemática y dinámica

Compañeros, buen día...

realizar el siguiente ejercicio:

Un conductor de karts que se encuentra en reposo comienza a acelerar alcanzando en 12 s una velocidad de 64.8 km/h. Sabiendo que la aceleración es constante en todo momento, completa la siguiente tabla:

t(s)	0	2	4	8	10	12
v(m/s)
s(m)
a(m/s2)

y dibujar las graficas v-t, s-t y a-t.

saludos cordiales