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

Author Question: Reflection, refraction, and the formation of images by mirrors and lenses has been successful ... (Read 136 times)

sheilaspns

  • Hero Member
  • *****
  • Posts: 567
on: Jul 29, 2018
Reflection, refraction, and the formation of images by mirrors and lenses has been successful described by the
 
  A)
 
  wave model of light.
  B)
 
  ray model of light.
  C)
 
  particle model of light.
  D)
 
  electro model of light.
  E)
 
  none of the given answers

Question 2

A car horn emits a frequency of 400 Hz. A car traveling at 20.0 m/s sounds the horn as it approaches a stationary pedestrian.
 
  What frequency does the pedestrian hear? The speed of sound in air is 343 m/s.
  A)
 
  200 Hz
 
  B)
 
  375 Hz
 
  C)
 
  400 Hz
 
  D)
 
  425 Hz
 
  E)
 
  450 Hz


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Shshxj

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

D


sheilaspns

  • Hero Member
  • *****
  • Posts: 567
Reply #2 on: Jul 29, 2018
Thank you!


Shshxj

  • Sr. Member
  • ****
  • Posts: 335
Reply #3 on: Jul 29, 2018
Always glad to help...


« previous next »
 

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Scorpions, Spiders and Sharks: Electron-Microscope Images Scorpions, Spiders and Sharks: Electron-Microscope Images
Decreased Activation of the Subgenual ACC After a Variety of Successful Treatments for Depression Decreased Activation of the Subgenual ACC After a Variety of Successful Treatments for Depression
How lenses correct visual problems: (A) emmetropia; (B) myopia; (C) hyperopia; (D) corrected myopia; ... How lenses correct visual problems: (A) emmetropia; (B) myopia; (C) hyperopia; (D) corrected myopia; ...
Formation of sodium chloride ions. Formation of sodium chloride ions.
The processes involved in urine formation. The processes involved in urine formation.
Eye formation on the leg of a fly Eye formation on the leg of a fly
Video: Ventilation - phases and driving forces

For a complete list of videos, visit our video library