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

Author Question: Kepler improved the Copernican planetary hypothesis by a) putting the Sun at the center of our ... (Read 17 times)

jasdeep_brar

  • Hero Member
  • *****
  • Posts: 569
on: Jul 28, 2018
Kepler improved the Copernican planetary hypothesis by
   
  a) putting the Sun at the center of our solar system.
  b) putting Earth at the center of our solar system.
  c) suggesting that the Sun rotates on its axis.
  d) determining the true shapes of the planetary orbits.

Question 2

A catapult fires an 800-kg rock with an initial velocity of 100 m/s at a 40 angle to the ground. The magnitude of the vertical impulse the catapult receives from the rock is
 a. 5.1  104 N s.
  b. 6.1  104 N s.
  c. 8.0  104 N s.
  d. 5.0  105 N s.
  e. 6.0  105 N s.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

nguyenhoanhat

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 28, 2018
Answer to Question 1

d

Answer to Question 2

a


jasdeep_brar

  • Member
  • Posts: 569
Reply 2 on: Jul 28, 2018
:D TYSM

raili21

  • Member
  • Posts: 324
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

A Need for Improved Water-Use Efficiency in Plants A Need for Improved Water-Use Efficiency in Plants
Using adaptive equipment: (A) male putting on shoe; (B) female eating one handed. Using adaptive equipment: (A) male putting on shoe; (B) female eating one handed.
Growth Chart for American Girls From Birth Through Age 3 Growth slows from infancy to toddlerhood b Growth Chart for American Girls From Birth Through Age 3 Growth slows from infancy to toddlerhood b
Zaha Hadid, Rosenthal Center for Contemporary Art, Cincinnati, Ohio. 2003. Zaha Hadid, Rosenthal Center for Contemporary Art, Cincinnati, Ohio. 2003.
Combustion chamber volume is the volume above the piston with the piston at top dead center. Combustion chamber volume is the volume above the piston with the piston at top dead center.
Compression using reinforced palm. The heel of the top hand is placed to avoid putting pressure on ... Compression using reinforced palm. The heel of the top hand is placed to avoid putting pressure on ...
Video: Effect of blood chemistry - stimuli, hyperventilation response and hypoventilation response

For a complete list of videos, visit our video library