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

Author Question: A 10-g bullet moving horizontally with a speed of 2.0 km/s strikes and passes through a 4.0-kg block ... (Read 198 times)

bobbysung

  • Hero Member
  • *****
  • Posts: 519
on: Jul 28, 2018
A 10-g bullet moving horizontally with a speed of 2.0 km/s strikes and passes through a 4.0-kg block moving with a speed of 4.2 m/s in the opposite direction on a horizontal frictionless surface. If the block is brought to rest by the collision, what is the kinetic energy of the bullet as it emerges from the block?
 a. 0.51 kJ
  b. 0.29 kJ
  c. 0.80 kJ
  d. 0.13 kJ
  e. 20 kJ

Question 2

A 3.0-kg mass sliding on a frictionless surface has a velocity of 5.0 m/s east when it undergoes a one-dimensional inelastic collision with a 2.0-kg mass that has an initial velocity of 2.0 m/s west. After the collision the 3.0-kg mass has a velocity of 1.0 m/s east. How much kinetic energy does the two-mass system lose during the collision?
 a. 22 J
  b. 24 J
  c. 26 J
  d. 20 J
  e. 28 J


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Qarqy

  • Sr. Member
  • ****
  • Posts: 313
Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

B


bobbysung

  • Member
  • Posts: 519
Reply 2 on: Jul 28, 2018
Thanks for the timely response, appreciate it

tandmlomax84

  • Member
  • Posts: 323
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Part of the Hubble Ultra-Deep Field image showing a typical section of space containing galaxies int Part of the Hubble Ultra-Deep Field image showing a typical section of space containing galaxies int
Pupil assessment; B, moving penlight directly in front of pupil. Pupil assessment; B, moving penlight directly in front of pupil.
James A. Garfield lies mortally wounded. After failing to locate the bullet, surgeons called in Alex James A. Garfield lies mortally wounded. After failing to locate the bullet, surgeons called in Alex
A steady needle reading that drops 2 or 3 inches Hg when the engine speed is increased slightly ... A steady needle reading that drops 2 or 3 inches Hg when the engine speed is increased slightly ...
Apply deep circular friction with the fingertips to the erector muscles on the right side, moving ... Apply deep circular friction with the fingertips to the erector muscles on the right side, moving ...
Hold baby’s feet and bend legs, moving knees into the abdomen/chest and then straighten. Repeat ... Hold baby’s feet and bend legs, moving knees into the abdomen/chest and then straighten. Repeat ...
Video: Secretin (inhibiting gastric acid secretion), Cholecystokinin (fat digestion) & Cholecystokinin

For a complete list of videos, visit our video library