« previous next »

Author Question: How did Newton deduce the dependence of the gravitational force on distance? A) By observing the ... (Read 37 times)

robinn137

  • Hero Member
  • *****
  • Posts: 544
on: Jul 29, 2018
How did Newton deduce the dependence of the gravitational force on distance?
 
  A) By observing the way that a large gravitational pendulum moved.
  B) By comparing the time it takes Earth to orbit the sun with the time it takes to spin on its axis.
  C) By calculating the moon's acceleration, and comparing it with the acceleration of a falling object.
  D) By comparing the accelerations of objects falling to Earth from different heights.
  E) By measuring the gravitational attraction between large massive lead spheres in the laboratory.

Question 2

James and John dive from an overhang into the lake below. James simply drops straight down from the edge. John takes a running start and jumps with an initial horizontal velocity of 25 m/s. Assuming no effects of air, when they reach the lake below
 
  A) the splashdown speed of James is larger than that of John.
  B) the splashdown speed of John is larger than that of James.
  C) they will both have the same splashdown speed.
  D) the splashdown speed of James must be 9.8 m/s larger than that of John.
  E) the splashdown speed of John must be 25 m/s larger than that of James.
Physics ¦ Walker ¦ 5th Edition
Buy Test-Bank


Jbrasil

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

The effects of organophosphate poisoning are referred to by using the abbreviations “SLUD” or “SLUDGE,” It stands for: salivation, lacrimation, urination, defecation, GI upset, and emesis.

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Did you know?

If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

Local and long–distance cell communication in animals. Local and long–distance cell communication in animals.
Replica of Newton’s Reflecting Telescope Replica of Newton’s Reflecting Telescope
Time dependence of the rates of a chemical reaction Time dependence of the rates of a chemical reaction
Gravitational Forces Gravitational Forces
Muscle Fiber Recruitment and Muscular Force Muscle Fiber Recruitment and Muscular Force
How far apart should two protons be if the electrical force of repulsion exerted on each one is ... How far apart should two protons be if the electrical force of repulsion exerted on each one is ...
Video: Helper T cell receptors, activation, proliferation, differentiation & action

For a complete list of videos, visit our video library