This topic contains a solution. Click here to go to the answer

Author Question: Velma, the space woman, is orbiting above Earth's surface in a low-altitude orbit. Does she actually ... (Read 68 times)

Frost2351

  • Hero Member
  • *****
  • Posts: 557
Velma, the space woman, is orbiting above Earth's surface in a low-altitude orbit. Does she actually have weight, or is she actually weightless, and why?
 
  A) She actually has weight, because Earth actually is pulling on her with nearly the normal pull of gravity.
  B) She is weightless because she is away from the pull of Earth's gravity.
  C) She is weightless because she is falling freely around the earth.
  D) She is weightless because she is in a vacuum.
  E) She actually has weight, because her weight remains the same no matter where she goes in the universe.

Question 2

A sled having a certain initial speed on a horizontal surface comes to rest after traveling 10 m. If the coefficient of kinetic friction between the sled and the surface is 0.20, what was the initial speed of the sled?
 
  A) 9.8 m/s
  B) 6.3 m/s
  C) 3.6 m/s
  D) 7.2 m/s
  E) 8.9 m/s



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

joshbk44

  • Sr. Member
  • ****
  • Posts: 340
Answer to Question 1

A

Answer to Question 2

B



Frost2351

  • Hero Member
  • *****
  • Posts: 557
Both answers were spot on, thank you once again




 

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

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?

In 1844, Charles Goodyear obtained the first patent for a rubber condom.

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

For a complete list of videos, visit our video library