« previous next »

Author Question: A 20.0-g bullet moving at 1 000 m/s is fired through a one-kg block of wood emerging at a speed of ... (Read 240 times)

mckennatimberlake

  • Hero Member
  • *****
  • Posts: 559
on: Jul 28, 2018
A 20.0-g bullet moving at 1 000 m/s is fired through a one-kg block of wood emerging at a speed of 100 m/s. If the block had been originally at rest and is free to move, what is its resulting speed?
 a. 22.0 m/s
  b. 18.0 m/s
  c. 20.0 m/s
  d. 2.00 m/s
  e. 45.0 m/s

Question 2

Two particles collide, one of them initially being at rest. Is it possible for both particles to be at rest after the collision?
 a. If the collision is perfectly inelastic, then this happens.
  b. If the collision is elastic, then this happens.
  c. This can happen sometimes if the more massive particle was at rest.
  d. No.


leeeep

  • Sr. Member
  • ****
  • Posts: 315
Reply #1 on: Jul 28, 2018
Answer to Question 1

b

Answer to Question 2

d


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

mckennatimberlake

  • Hero Member
  • *****
  • Posts: 559
Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


leeeep

  • Sr. Member
  • ****
  • Posts: 315
Reply #3 on: Jul 28, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Bullet Ant Bullet Ant
Techniques for applying local anesthesia: (a) topical; (b) infiltration; (c) nerve block; (d) spinal Techniques for applying local anesthesia: (a) topical; (b) infiltration; (c) nerve block; (d) spinal
Apparatus Used by Wood et al. Apparatus Used by Wood et al.
The developing and emerging nations have high rates of population growth The developing and emerging nations have high rates of population growth
Integrated Gasification Combined Cycle coal-fired stations Integrated Gasification Combined Cycle coal-fired stations
A 4.0-kg block slides down a 35 incline at a constant speed when a 16-N force is applied acting ... A 4.0-kg block slides down a 35 incline at a constant speed when a 16-N force is applied acting ...
Video: Lipid absorption - end products & transport mechanism

For a complete list of videos, visit our video library