Author Question: Which fundamental fact about the electromagnetic force explains why electromagnetic waves exist, ... (Read 61 times)

craiczarry

  • Hero Member
  • *****
  • Posts: 527
Which fundamental fact about the electromagnetic force explains why electromagnetic waves exist, rather than simply electromagnetic force?
 
  A) The electromagnetic force acts at a distance with a delay time, rather than instantaneously.
  B) The electromagnetic force decreases at points more distant from the source of that force.
  C) The electromagnetic force can be felt in all directions from the source of that force.
  D) The electromagnetic force cannot be felt across vacuum.
  E) The electromagnetic force acts instantaneously at a distance, with no delay time.

Question 2

A 5-kg fish swimming at 1 m/s swallows an absent-minded 1-kg fish swimming toward it at 4 m/s. The speed of the larger fish after lunch is
 
  A) 1/2 m/s.
  B) 1/5 m/s.
  C) 1/6 m/s.
  D) 2/3 m/s.
  E) 3/2 m/s.



SomethingSomething

  • Sr. Member
  • ****
  • Posts: 323
Answer to Question 1

A

Answer to Question 2

Answer: C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

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?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

For a complete list of videos, visit our video library