This topic contains a solution. Click here to go to the answer

Author Question: On a day when the speed of sound in air is 340. m/s, a bat emits a shriek whose echo reaches it ... (Read 33 times)

Kthamas

  • Hero Member
  • *****
  • Posts: 546
On a day when the speed of sound in air is 340. m/s, a bat emits a shriek whose echo reaches it later. How far away was the object that reflected back the sound?
 
  What will be an ideal response?

Question 2

Both the microscope and the telescope make the object appear much larger. Why are these two instruments designed differently (e.g., why are the equations for magnification quite different)?
 
  What will be an ideal response?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

katheyjon

  • Sr. Member
  • ****
  • Posts: 331
Answer to Question 1

4.25 m

Answer to Question 2

The object for a telescope is at infinity whereas the object of a microscope is very close to the objective. The ray diagrams and the designs are thus quite different.




Kthamas

  • Member
  • Posts: 546
Reply 2 on: Jul 27, 2018
:D TYSM


essyface1

  • Member
  • Posts: 347
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

For a complete list of videos, visit our video library