Author: Anonymous

A beam of light moves from air into water at an angle.  The beam is bent  

23. a) A diverging lens is placed in a lens holder on an optical bench. What is the the image distance if the diverging lens has a focal length of 10.0 cm and the object is set at a distance of 5.0 cm on the left side of the lens on the optical bench. (4 pts) b) Draw a ray tracing diagram for the arrangement described above.  Draw the three principle rays and include the near and far focal points in your drawing. Be sure to identify the object and image in your drawing.  Use the information you calculated in “a” to label the diagram properly. (6 pts) c) What type of image is formed by the diverging lens and what is its orientation? (4pts.) d) Calculate the magnification and image height for an object height of 4.0 cm. (4 pts)   24. Charge 1 is 15.0 cm from point P and charge 2 is 5.0 cm from point P.  a) Calculate the magnitude and direction of the total electric field at point P in the diagram above. (Indicate the direction as an angle above or below the horizontal) (14 pts) b) Calculate the electric potential at point P in the diagram above.  (8 pts)   25. Draw the electric field lines for two equal negative charges. Indicate the direction of increasing potential. (4pts)   26. a) Draw the two possible arrangements that can be made with a 10.0 uF and 2.50 uF capacitors. Be sure to label each arrangement and use the correct symbols for the capacitors and values. (4 pts) b) Calculate the total capacitance for each of the arrangements drawn above? (4 pts) c) Find the energy stored in the capacitors if they are connected in series to a 6.0 V lantern battery and the energy stored for a parallel connection.  (4pts)

A signal phrase usually does what?  (Mark all that apply.)

MLA style calls for verbs in the present tense to introduce source material.

Here are two e-mails that a student drafted to send to a professor to request an extension on a paper’s due date. Which one shows more consideration for the needs of the audience?

Which passage would be more effective in a campus newspaper article criticizing the food in the cafeteria’s vending machines?

Rushdie notes that Dorothy’s weeping makes other characters cry, as when her tears “undam a quite alarming reservoir of liquid” from the guard in an extreme performance outside the Wizard’s palace (223).

The sheer number of occasions on which people cry in The Wizard of Oz is astounding.

Rushdie points out the number of characters who weep in The Wizard of Oz: Dorothy cries tears of frustration before being allowed to enter the Wizard’s palace, the guard at the palace becomes sodden with tears, the Cowardly Lion cries when Dorothy hits him on the nose, the Tin Man nearly rusts up again from crying, and Dorothy cries again when captured by the Witch (223).

After pointing out how many times characters cry in The Wizard of Oz, Rushdie observes that “if the hydrophobic Witch could only have been closer at hand on one of these occasions the movie might have been much shorter” (223-24).