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

Author Question: In air a concave mirror has a focal length of 30. cm. Under water that same mirror would have ... (Read 82 times)

Zoey63294

  • Hero Member
  • *****
  • Posts: 539
on: Jul 27, 2018
In air a concave mirror has a focal length of 30. cm. Under water that same mirror would have ________ focal length.
 
  A) a larger
  B) the same
  C) a smaller

Question 2

A parallel plate capacitor with plate separation of 4.0 cm has a plate area of 4.0  10-2 . What is the capacitance of this capacitor with air between these plates?
 
  A) 8.9  10-11 F
  B) 8.9  10-12 F
  C) 8.9  10-13 F
  D) 8.9  10-14 F
  E) 8.9  10-15 F


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

raili21

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

B


Zoey63294

  • Member
  • Posts: 539
Reply 2 on: Jul 27, 2018
Wow, this really help

carojassy25

  • Member
  • Posts: 299
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Did you know?

By definition, when a medication is administered intravenously, its bioavailability is 100%.

Did you know?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

Structure of water and ice Structure of water and ice
Water amount needed to grow crops Water amount needed to grow crops
Attraction between water molecules showing polar covalent bonding. Attraction between water molecules showing polar covalent bonding.
The relationship between the height of the firing line and length of the spark line can be ... The relationship between the height of the firing line and length of the spark line can be ...
The Best Way to Meet Your Daily Water Needs The Best Way to Meet Your Daily Water Needs
A Bat Ray cruising through the water column below the "sunburst." Bat Rays are types of ... A Bat Ray cruising through the water column below the "sunburst." Bat Rays are types of ...
Video: Condensation and Hydrolysis Animation

For a complete list of videos, visit our video library