This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Imagine we've discovered a planet orbiting another star at 1 AU every 6 months. The planet has a ... (Read 95 times)

iveyjurea

  • Hero Member
  • *****
  • Posts: 555
on: Jul 27, 2018
Imagine we've discovered a planet orbiting another star at 1 AU every 6 months. The planet has a moon that orbits the planet at the same distance as our Moon, but it takes 2 months. What can we infer about this planet?
 
  A) It is more massive than Earth.
  B) It is less massive than Earth.
  C) It has the same mass as Earth.
  D) We cannot answer the question without knowing the mass of the star.
  E) We cannot answer the question without knowing the mass of the moon.

Question 2

If you see Al going to your left at exactly 0.99c and Bob going to your right at exactly 0.99c, Al will say that Bob is
 
  A) going away from her at 1.98c.
  B) going away from her at exactly 0.99c.
  C) going away from her at exactly c.
  D) going away from her at about 0.98c.
  E) going away from her faster than 0.99c, but slower than c.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

upturnedfurball

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

E


iveyjurea

  • Member
  • Posts: 555
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

LegendaryAnswers

  • Member
  • Posts: 341
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

From space earth shows itself as a planet covered mostly by water. From space earth shows itself as a planet covered mostly by water.
Venous Star Venous Star
The Mauer mandible, discovered in Germany in 1907. The Mauer mandible, discovered in Germany in 1907.
Crying Frequency in the Early Months In their first months of life, infants often cry for no appare Crying Frequency in the Early Months In their first months of life, infants often cry for no appare
Flo Hyman was a 6 foot 5 inch star on the U.S. women’s volleyball team that won a silver medal in ... Flo Hyman was a 6 foot 5 inch star on the U.S. women’s volleyball team that won a silver medal in ...
We lost the 6th book in the series. After two months, we finally found it. We lost the 6th book in the series. After two months, we finally found it.
Video: Interview with an Anorexic Woman (Part 2 of 2)

For a complete list of videos, visit our video library