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

Author Question: Two objects attract each other gravitationally. If the distance between their centers is cut in ... (Read 82 times)

LCritchfi

  • Hero Member
  • *****
  • Posts: 519
on: Jul 29, 2018
Two objects attract each other gravitationally. If the distance between their centers is cut in half, the gravitational force
 
  A) is cut to one fourth.
  B) is cut in half.
  C) doubles.
  D) quadruples
  E) remains the same

Question 2

A far sighted person can not see clearly objects that are closer to his eyes than 60.0 cm.
 
  Which one of the following combinations represents the correct focal length and the refractive power of the contact lenses that will enable him to see the objects at a distance of 25.0 cm from his eyes? A) -42.9 cm, +2.33 diopters
  B) -42.9 cm, -2.33 diopters
  C) +42.9 cm, +2.33 diopters
  D) +42.9 cm, -2.33 diopters
  E) +60 cm, +42.9 diopters


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

scrocafella

  • Sr. Member
  • ****
  • Posts: 346
Reply #1 on: Jul 29, 2018
Answer to Question 1

D

Answer to Question 2

C


LCritchfi

  • Hero Member
  • *****
  • Posts: 519
Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


scrocafella

  • Sr. Member
  • ****
  • Posts: 346
Reply #3 on: Jul 29, 2018
Great! Please up vote :D


« previous next »
 

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?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Spinnbarkeit is the ability of cervical mucus to stretch a distance before breaking. Spinnbarkeit is the ability of cervical mucus to stretch a distance before breaking.
"Visual Acuity Testing, Assessing Distance Vision "Visual Acuity Testing, Assessing Distance Vision
Children with autism generally prefer interacting with objects over people. Children with autism generally prefer interacting with objects over people.
Distance from Initial Change in Membrane Potential vs. Voltage Change Relative to Initial Change Distance from Initial Change in Membrane Potential vs. Voltage Change Relative to Initial Change
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 ...
Major U.S. Centers of Cattle, Corn, Wheat, and Soybean Production Major U.S. Centers of Cattle, Corn, Wheat, and Soybean Production
Video: Regulation of GFR: autoregulation via tubuloglomerular feedback, neural & hormonal regulation

For a complete list of videos, visit our video library