« previous next »

Author Question: Kim is in a spaceship moving past you at half the speed of light. Which of the following correctly ... (Read 84 times)

NClaborn

  • Hero Member
  • *****
  • Posts: 560
on: Jul 27, 2018
Kim is in a spaceship moving past you at half the speed of light. Which of the following correctly describes how you will perceive each other's time?
 
  A) You will say that Kim's time is running slow, and she will say that your time is running fast.
  B) You will say that Kim's time is running slow, and she will say that your time is running slow.
  C) You will say that Kim's time is running fast, and she will say that your time is running slow.
  D) You will both agree that time runs at the same rate for both of you.

Question 2

In the Ptolemaic model, retrograde motion is due to
 
  A) relative motion between the Earth and another planet in its orbit
  B) the Earth reversing the direction of its orbit about the Sun
  C) a planet moving backwards in its smaller circular circle, the center of which moves in a larger circular orbit around the Earth
  D) a planet reversing the direction of its orbit about the Sun


smrtceo

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Absorbance of Light by Rods and Cones Absorbance of Light by Rods and Cones
Light penetration in Rivers Light penetration in Rivers
This Toyota cap has a warning—the check engine light will come on if not tightened until one ... This Toyota cap has a warning—the check engine light will come on if not tightened until one ...
Gradient Flow:Upper air moving from areas of higher pressure to areas of lower pressure undergo ... Gradient Flow:Upper air moving from areas of higher pressure to areas of lower pressure undergo ...
People with night eating syndrome may consume more than half their day's calories between 8 pm ... People with night eating syndrome may consume more than half their day's calories between 8 pm ...
A pool player is attempting a fancy shot. He hits the cue ball giving it a speed of 5.57 m/s ... A pool player is attempting a fancy shot. He hits the cue ball giving it a speed of 5.57 m/s ...
Video: Enzyme structure - Properties of enzymes

For a complete list of videos, visit our video library