Author Question: The force of gravity does NOT do work on an object that is: a. falling. b. rising. c. stationary. ... (Read 77 times)

LaDunn

  • Hero Member
  • *****
  • Posts: 526
The force of gravity does NOT do work on an object that is:
 a. falling.
  b. rising.
  c. stationary.
  d. a falling piece of writing paper.
  e. being pushed upwards.

Question 2

If the orbit is elliptical, rather than circular, what can be said about the work done by the Sun on Earth?
 a. It does not matter whether the orbit is circular or elliptical, no work is done.
  b. If the orbit is elliptical, work is done to speed up or to slow down Earth, depending on its location in orbit.
  c. Whether the orbit is circular or elliptical, work must be done to propel Earth around the Sun.
  d. The work the Sun does on Earth accounts for Earth's changes of season.
  e. The work the Sun does on Earth causes the tides.



sarajane1989

  • Sr. Member
  • ****
  • Posts: 296
Answer to Question 1

c

Answer to Question 2

b



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Did you know?

In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

For a complete list of videos, visit our video library