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

Author Question: If a lens is submerged in water, what happens to its focal length? A) It decreases. B) It stays ... (Read 51 times)

dakota nelson

  • Hero Member
  • *****
  • Posts: 604
on: Jul 29, 2018
If a lens is submerged in water, what happens to its focal length?
 
  A) It decreases.
  B) It stays the same.
  C) It becomes negative.
  D) It increases.

Question 2

A boy kicks a football from ground level with a certain initial velocity at an angle 30.0 above the horizontal. In 2.00 seconds the ball completes its trajectory and hits the ground. What is the initial velocity of the ball?
 
  A) 9.80 m/s
  B) 4.90 m/s
  C) 39.2 m/s
  D) 19.6 m/s
  E) 78.4 m/s


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

D

Answer to Question 2

D


dakota nelson

  • Member
  • Posts: 604
Reply 2 on: Jul 29, 2018
Gracias!

tkempin

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

Did you know?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

Did you know?

More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.

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.

Water movement between capillaries and interstitial fluid. Water movement between capillaries and interstitial fluid.
Structure of the water molecule Structure of the water molecule
Louis Comfort Tiffany, Tiffany Studios, Water-lily table lamp. Louis Comfort Tiffany, Tiffany Studios, Water-lily table lamp.
Measuring the Weight and Length of an Infant Measuring the Weight and Length of an Infant
This severely corroded water pump could not circulate enough coolant to keep the engine cool. As a ... This severely corroded water pump could not circulate enough coolant to keep the engine cool. As a ...
Ocean water flows vertically and horizontally, influencing climate Ocean water flows vertically and horizontally, influencing climate
Video: Ciliate conjugation Animation

For a complete list of videos, visit our video library