Author Question: If a planet has 9 times the radius of the Earth, but has the same density as the Earth, what is the ... (Read 83 times)

asmith134

  • Hero Member
  • *****
  • Posts: 576
If a planet has 9 times the radius of the Earth, but has the same density as the Earth, what is the gravitational acceleration at the surface of the planet? (g = 9.8 m/s2)
 a. 29.4 m/s2
  c. 265 m/s2
  b. 88.2 m/s2
  d. 39.2 m/s2

Question 2

An Earth satellite is orbiting at a distance from the Earth's surface equal to two Earth radii. At this location, the acceleration due to gravity is what factor times the value of g at the Earth's surface?
 a. There is no acceleration since the satellite is in orbit.
  b. 1/9
  c. 1/4
  d. The answer is not given.



akemokai

  • Sr. Member
  • ****
  • Posts: 347
Answer to Question 1

B

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

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.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

For a complete list of videos, visit our video library