Author Question: The magnetic forces exerted by a permanent magnet are due to A) electrons moving in atoms. B) ... (Read 87 times)

kamilo84

  • Sr. Member
  • ****
  • Posts: 495
The magnetic forces exerted by a permanent magnet are due to
 
  A) electrons moving in atoms.
  B) equal and opposite magnets placed on each of the two poles.
  C) a miracle.
  D) large-scale macroscopic electric currents on the surface of the magnet.
  E) equal and opposite charges placed on each of the two poles.

Question 2

A water rocket can reach a speed of 75 m/s in 0.050 seconds from launch. What is its average acceleration?
 
  What will be an ideal response?



Sophiapenny

  • Sr. Member
  • ****
  • Posts: 339
Answer to Question 1

A

Answer to Question 2

1500 m/s2



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

Sophiapenny

  • Sr. Member
  • ****
  • Posts: 339

 

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Did you know?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

For a complete list of videos, visit our video library