Author Question: Planetary orbits are a. parabolas. b. ellipses. c. circles. d. none of the ... (Read 43 times)

audragclark

  • Hero Member
  • *****
  • Posts: 579
Planetary orbits are
 a. parabolas. b. ellipses.
  c. circles. d. none of the above.

Question 2

The vertical acceleration of a projectile
 a. equals g pointing downwards.
  b. equals g pointing upwards.
  c. equals g pointing sometimes upwards and other times downwards.
  d. is zero.
  e. continuously increases.



ebe

  • Sr. Member
  • ****
  • Posts: 320
Answer to Question 1

b

Answer to Question 2

a



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

ebe

  • Sr. Member
  • ****
  • Posts: 320

 

Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

Did you know?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

For a complete list of videos, visit our video library