This topic contains a solution. Click here to go to the answer

Author Question: For a period after June 21 for locations above 23 N, sunrise in the conterminous United States ... (Read 43 times)

viki

  • Hero Member
  • *****
  • Posts: 525
For a period after June 21 for locations above 23  N, sunrise in the conterminous United States occurs ______________ each day.
 Fill in the blank(s) with correct word

Question 2

Wave frequency is inversely proportional to
 a. amplitude.
  b. period.
  c. wave velocity.
  d. all of these.

Question 3

A pure sample of 226Ra contains 2.0  1014 atoms of the isotope. If the half-life of 226Ra = 1.6  103 years, what is the decay rate of this sample? (1 Ci = 3.7  1010 decays/s)

Question 4

The flat, distorted maps of the world are ______________.
 Fill in the blank(s) with correct word

Question 5

Which of the following characterize(s) a wave?
 a. Wavelength
  b. Amplitude
  c. Period
  d. All of these

Question 6

Homer says that we can safely use nuclear power because all radioactive nuclei are gone after two half-lives. Marge says that only the decay rate is zero after two half-lives. Which one, if either, is correct, and why?
 a. Homer, because half of the nuclei disintegrate in each half-life.
  b. Marge, because the number of decays per unit time is halved in each half-life.
  c. Homer, because it's safe to handle radioactive substances after two half-lives.
  d. Both, because when all nuclei disintegrate the decay rate is also zero.
  e. Neither, because one quarter of the nuclei are left after two half-lives.

Question 7

The International Date Line is a theoretical line following approximately the ______________ meridian.
 Fill in the blank(s) with correct word

Question 8

A quantity of ideal gas in a rigid container has a pressure of 1.00  106 Pa at 0C. If the pressure is increased to 1.75  106 Pa, what is the temperature of the gas after this is done?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Athena23

  • Sr. Member
  • ****
  • Posts: 305
Answer to Question 1

later

Answer to Question 2

b

Answer to Question 3

7.4  108 Ci

Answer to Question 4

(Mercator) projections

Answer to Question 5

d

Answer to Question 6

e

Answer to Question 7

180

Answer to Question 8

204.75C




viki

  • Member
  • Posts: 525
Reply 2 on: Jul 29, 2018
Excellent


mjenn52

  • Member
  • Posts: 351
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

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.

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Did you know?

Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

For a complete list of videos, visit our video library