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 62 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?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

Oxytocin is recommended only for pregnancies that have a medical reason for inducing labor (such as eclampsia) and is not recommended for elective procedures or for making the birthing process more convenient.

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Did you know?

More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

Possible Earth 5 billion years from now Possible Earth 5 billion years from now
Earth, water, air Earth, water, air
The Arctic is warming faster than any other region on Earth The Arctic is warming faster than any other region on Earth
Earth’s Layered Structure Earth’s Layered Structure
Earth as a System: The Hydrologic Cycle Earth as a System: The Hydrologic Cycle
Earth’s tilt and yearly rotation around the sun cause seasonal effects. The 23° tilt of Earth’s ... Earth’s tilt and yearly rotation around the sun cause seasonal effects. The 23° tilt of Earth’s ...
Video: HDL (high density lipoprotein)

For a complete list of videos, visit our video library