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

Author Question: On a photograph of the Moon, the Moon measures 30 cm in diameter and a small crater measures 0.2 cm. ... (Read 778 times)

neverstopbelieb

  • Hero Member
  • *****
  • Posts: 534
on: Jul 27, 2018
On a photograph of the Moon, the Moon measures 30 cm in diameter and a small crater measures 0.2 cm. The Moon's physical diameter is 1738 km. What is the physical diameter of the small crater?
 
  a. about 1738 km
  b. about 12 km
  c. about 520 km
  d. about 350 km
  e. about 3.5 km

Question 2

51 Pegasi is important because
 
  a. it is a pulsar with planets orbiting around it.
  b. it is a star with a planet that is known to support intelligent life.
  c. it is the largest satellite of Jupiter.
  d. it is the largest known asteroid.
  e. it is the first star like our Sun that was found to have a planet orbiting it.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Zack0mack0101@yahoo.com

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Jul 27, 2018
Answer to Question 1

b
RATIONALE: Using conversions, you can set up an equation like 0.2 cm/30 cm = x/1738 km and solve for x.

Answer to Question 2

e


neverstopbelieb

  • Member
  • Posts: 534
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

bblaney

  • Member
  • Posts: 323
Reply 3 on: Yesterday
Excellent

« 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?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Comparison of small subunit (SSU) rRNA gene sequences from three animals and a protist. Comparison of small subunit (SSU) rRNA gene sequences from three animals and a protist.
A crescent Moon and "star" A crescent Moon and "star"
Small and large intestines Small and large intestines
Early cities were small economic centers surrounded by walls to keep out enemies. These cities had ... Early cities were small economic centers surrounded by walls to keep out enemies. These cities had ...
Photograph of several billiard balls Photograph of several billiard balls
Photograph of a puff within a polytene chromosome Photograph of a puff within a polytene chromosome
Video: Miller's reaction chamber experiment Animation

For a complete list of videos, visit our video library