This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A light ray is reflected by two mirrors that are perpendicular. The new direction of the ray is ... (Read 71 times)

mrsjacobs44

  • Hero Member
  • *****
  • Posts: 500
on: Jul 29, 2018
A light ray is reflected by two mirrors that are perpendicular. The new direction of the ray is
 
  A)
 
  180 from the original direction.
  B)
 
  135 from the original direction.
  C)
 
  45 from the original direction.
  D)
 
  between 90 and 180 from the original direction.
  E)
 
  90 from the original direction.

Question 2

When is the average acceleration of an object equal to the instantaneous acceleration?
 
  A)
 
  always
  B)
 
  never
  C)
 
  only when the acceleration is constant
  D)
 
  only when the acceleration is increasing at a constant rate
  E)
 
  only when the acceleration is decreasing at a constant rate


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

robbielu01

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

C


mrsjacobs44

  • Hero Member
  • *****
  • Posts: 500
Reply #2 on: Jul 29, 2018
TY


robbielu01

  • Sr. Member
  • ****
  • Posts: 336
Reply #3 on: Jul 29, 2018
You're welcome


« previous next »
 

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

The direction of plant cell expansion is controlled by microfibrils and microtubules. Plant cells en The direction of plant cell expansion is controlled by microfibrils and microtubules. Plant cells en
Retrograde pyelogram. A contrast medium is injected into the ureter using a cystoscope, and the X-ra Retrograde pyelogram. A contrast medium is injected into the ureter using a cystoscope, and the X-ra
pupil light reaction pupil light reaction
Apply effleurage over eyelids. Using very light pressure, stroke the closed eyelids with your thumbs ... Apply effleurage over eyelids. Using very light pressure, stroke the closed eyelids with your thumbs ...
How to find the equation of a line that is perpendicular to a line passing through a point How to find the equation of a line that is perpendicular to a line passing through a point
A laser emits a pulse of light that lasts 10 ns. The light has a wavelength of 690 nm, and each ... A laser emits a pulse of light that lasts 10 ns. The light has a wavelength of 690 nm, and each ...
Video: Electrical changes in the heart

For a complete list of videos, visit our video library