Author Question: A light-year is the distance that light travels in one year. The speed of light is 3.00 108 m/s. ... (Read 170 times)

nevelica

  • Hero Member
  • *****
  • Posts: 563
A light-year is the distance that light travels in one year. The speed of light is 3.00  108 m/s. How many miles are there in one light-year? (1 mi = 1609 m, 1 y = 365 d)
 
  A) 9.46  1015 mi B) 9.46  1012 mi C) 5.88  1012 mi D) 5.88  1015 mi

Question 2

Which of the following best describes the meaning of force?
 
  A) A body's force is the tendency of that body to continue moving once it is started moving.
  B) A force is a change in velocity.
  C) The force of a moving body is the distance the body travels divided by the time it takes to travel that distance.
  D) A body exerts a force on another body when the first body causes the second body to accelerate.
  E) The force that a body has is the amount of work that the body can do.



brittrenee

  • Sr. Member
  • ****
  • Posts: 321
Answer to Question 1

C

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

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?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

For a complete list of videos, visit our video library