« previous next »

Author Question: A billiard ball is moving in the x direction at 40.0 cm/s and strikes another billiard ball moving ... (Read 43 times)

xroflmao

  • Hero Member
  • *****
  • Posts: 515
on: Jul 28, 2018
A billiard ball is moving in the x direction at 40.0 cm/s and strikes another billiard ball moving in the y direction at 30.0 cm/s. As a result of the collision, the first ball moves at 50.0 cm/s, and the second ball stops. What is the change in kinetic energy of the system as a result of the collision?
 a. 0
  c. some negative value
  b. some positive value
  d. No answer above is correct.

Question 2

Which of the following best characterizes electrical insulators?
 a. high tensile strength
  c. good heat conductors
  b. charges on the surface don't move
  d. electric charges move freely


ambernicolefink

  • Sr. Member
  • ****
  • Posts: 359
Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

In 1844, Charles Goodyear obtained the first patent for a rubber condom.

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

A pair of humpback whales lunge feeding through a bait ball A pair of humpback whales lunge feeding through a bait ball
Pupil assessment; B, moving penlight directly in front of pupil. Pupil assessment; B, moving penlight directly in front of pupil.
Lithotripsy. The direction of a sound pulse crushes the stones into smaller fragments that can be pa Lithotripsy. The direction of a sound pulse crushes the stones into smaller fragments that can be pa
Wedge-shaped oil film developed below a moving block. Wedge-shaped oil film developed below a moving block.
Apply direct pressure under the zygomatic arch. Moving laterally, gently press up and under the ... Apply direct pressure under the zygomatic arch. Moving laterally, gently press up and under the ...
Overview of lymphatic system structures and the general direction of lymph flow from the extremities ... Overview of lymphatic system structures and the general direction of lymph flow from the extremities ...
Video: Hydrogen bonds vs. Ionic bond

For a complete list of videos, visit our video library