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

Author Question: The end of the last snowball Earth phase roughly coincides with A) the beginning of the Cambrian ... (Read 54 times)

dalyningkenk

  • Hero Member
  • *****
  • Posts: 598
on: Jul 27, 2018
The end of the last snowball Earth phase roughly coincides with
 
  A) the beginning of the Cambrian period which produced an explosion in diversity of life
  B) the appearance of modern hominids
  C) migration of life from the oceans onto land
  D) the appearance of the dinosaurs

Question 2

Using the velocity transformation formula, calculate the speed in the rest frame of a particle which is seen to be moving at c in a moving frame.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

alvinum

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

u = (v+u')/(1+vu/c2 ) = (v+c)/(1+vc/c2 ) = c(v+c)/(c+v) = c
Light speed in one frame will be light speed in all inertial frames.


dalyningkenk

  • Hero Member
  • *****
  • Posts: 598
Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


alvinum

  • Sr. Member
  • ****
  • Posts: 317
Reply #3 on: Jul 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

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

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Landmarks in the evolution of life on Earth Landmarks in the evolution of life on Earth
Lightning on Earth Lightning on Earth
Moon and Earth Moon and Earth
How Orbital Eccentricity Changes the Amount of Solar Radiation Earth Receives How Orbital Eccentricity Changes the Amount of Solar Radiation Earth Receives
Foundations of Earth Science, 7th Edition Foundations of Earth Science, 7th Edition
Views of Earth’s Layered Structure Views of Earth’s Layered Structure
Video: Central Nervous System Animation

For a complete list of videos, visit our video library