« previous next »

Author Question: Two ice skaters push off against one another starting from a stationary position. The 45.0-kg skater ... (Read 73 times)

jjjetplane

  • Hero Member
  • *****
  • Posts: 556
on: Jul 29, 2018
Two ice skaters push off against one another starting from a stationary position. The 45.0-kg skater acquires a speed of 0.375 m/s.
 
  What speed does the 60.0-kg skater acquire? Assume that any other unbalanced forces during the collision are negligible.
  A) 0.281 m/s B) 0.000 m/s C) 0.750 m/s D) 0.500 m/s E) 0.375 m/s

Question 2

Future space stations will create an artificial gravity by rotating. Consider a cylindrical space station of 380 m diameter rotating about its axis. Astronauts walk on the inside surface of the space station.
 
  What rotation period will provide normal gravity? A) 28 s
  B) 39 s
  C) 6.2 s
  D) 4.4 s


Missbam101

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

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?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

Did you know?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

Pupil assessment; A, starting position, with penlight to side of pupil; Pupil assessment; A, starting position, with penlight to side of pupil;
Double-check for any oil or vacuum leaks after starting the engine. Double-check for any oil or vacuum leaks after starting the engine.
The default position for the throttle plate is in slightly open position. The servomotor then is ... The default position for the throttle plate is in slightly open position. The servomotor then is ...
Position of the fetus in late pregnancy results in stresses on the mother’s body. Position of the fetus in late pregnancy results in stresses on the mother’s body.
Gliding Phoenix. Beginning position: Legs straight and together, arms at sides of body. 1. Rise up ... Gliding Phoenix. Beginning position: Legs straight and together, arms at sides of body. 1. Rise up ...
Position of the Diaphragm During Inhalation and Exhalation Position of the Diaphragm During Inhalation and Exhalation
Video: Embryonic development - week 1 and 2

For a complete list of videos, visit our video library