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

Author Question: Star 1 is approaching the Earth with speed v. Star 2 is receding from the Earth with the same speed ... (Read 97 times)

anshika

  • Hero Member
  • *****
  • Posts: 510
on: Jul 28, 2018
Star 1 is approaching the Earth with speed v. Star 2 is receding from the Earth with the same speed v. Measurements of the same spectral line from each of the stars show Doppler shifts in frequency. The light from which star will have the larger magnitude shift in frequency?
 a. star 1
  b. Both stars will have the same shift.
  c. The value of the speed must be known before an answer can be found. d. star 2

Question 2

Pennies used to be made of copper, but now they are made of copper-coated zinc. If one were to do a precise calorimetry experiment to determine the specific heat of the new pennies, what would be the result to be?
 a. It would be that of copper since copper is on the outside.
  b. It would be that of zinc since zinc is in the center.
  c. It would be the sum of the copper and zinc specific heats.
  d. It would be between that of copper and that of zinc, depending on coating thickness.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ebonylittles

  • Sr. Member
  • ****
  • Posts: 318
Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

D


anshika

  • Member
  • Posts: 510
Reply 2 on: Jul 28, 2018
Thanks for the timely response, appreciate it

Laurenleakan

  • Member
  • Posts: 309
Reply 3 on: Yesterday
:D TYSM

« 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?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Possible Earth 5 billion years from now Possible Earth 5 billion years from now
Tides on Earth Tides on Earth
Mass Loss by a Supermassive Star Mass Loss by a Supermassive Star
Earth Atmosphere Earth Atmosphere
Planet Z-34 has a mass equal to 1/3 that of Earth, a radius equal to 1/3 that of Earth, and an ... Planet Z-34 has a mass equal to 1/3 that of Earth, a radius equal to 1/3 that of Earth, and an ...
Earth 430 Million Years Ago Earth 430 Million Years Ago
Video: Subunits of DNA And Semi Conservative Replication

For a complete list of videos, visit our video library