« 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 252 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?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

Yellow Wood Sorrel Yellow Wood Sorrel
Evidence that Light Travels at a Finite Speed Evidence that Light Travels at a Finite Speed
Ethnic Differences in Financial Support for College Based on a sample of 304 emerging adults aged 2 Ethnic Differences in Financial Support for College Based on a sample of 304 emerging adults aged 2
Lightly squeeze along each finger applying pressure first near the knuckle and then moving along the ... Lightly squeeze along each finger applying pressure first near the knuckle and then moving along the ...
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 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: Stomach peristalsis - Movement of Food Through the Small Intestine

For a complete list of videos, visit our video library