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

Author Question: In a perfectly elastic collision, a 400-g ball moving toward the east at 3.7 m/s suddenly collides ... (Read 33 times)

jman1234

  • Hero Member
  • *****
  • Posts: 560
on: Jul 29, 2018
In a perfectly elastic collision, a 400-g ball moving toward the east at 3.7 m/s suddenly collides head-on with a 200 g ball sitting at rest. (a) Determine the velocity of the first ball just after the collision.
 
  (b) Determine the velocity of the second ball just after the collision. (c) Is kinetic energy conserved in this collision? How do you know?

Question 2

What is the magnitude of the gravitational force that two small 7.00-kg balls exert on each other when they are 35.0 cm apart? (G = 6.67  10-11 N  m2/kg2)
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jasonq

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jul 29, 2018
Answer to Question 1

(a) 1.2 m/s toward the east (b) 4.9 m/s toward the east (c) Yes, it is an elastic collision.

Answer to Question 2

2.67  10-8 N


jman1234

  • Member
  • Posts: 560
Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review

amandanbreshears

  • Member
  • Posts: 320
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

USF Biologist Taegan McMahon conducts experiments on chlorothalonil at a research facility in East H USF Biologist Taegan McMahon conducts experiments on chlorothalonil at a research facility in East H
Pupil assessment; B, moving penlight directly in front of pupil. Pupil assessment; B, moving penlight directly in front of pupil.
The Railroads: Moving Agricultural Products to Eastern Markets, 1890 The Railroads: Moving Agricultural Products to Eastern Markets, 1890
Moving the hip through its full range of motion. Moving the hip through its full range of motion.
Apply effleurage to both sides of the upper trapezius using loose fists. When moving laterally, ... Apply effleurage to both sides of the upper trapezius using loose fists. When moving laterally, ...
a billiard ball physics question a billiard ball physics question
Video: Bone Growth and Remodeling

For a complete list of videos, visit our video library