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

Author Question: A 1.6-kg block is attached to the end of a 2.0-m string to form a pendulum. The pendulum is released ... (Read 162 times)

Melani1276

  • Hero Member
  • *****
  • Posts: 516
on: Jul 28, 2018
A 1.6-kg block is attached to the end of a 2.0-m string to form a pendulum. The pendulum is released from rest when the string is horizontal. At the lowest point of its swing when it is moving horizontally, the block is hit by a 10-g bullet moving horizontally in the opposite direction. The bullet remains in the block and causes the block to come to rest at the low point of its swing. What was the magnitude of the bullet's velocity just before hitting the block?
 a. 1.0 km/s
  b. 1.6 km/s
  c. 1.2 km/s
  d. 1.4 km/s
  e. 1.8 km/s

Question 2

A 2.0-kg object moving 5.0 m/s collides with and sticks to an 8.0-kg object initially at rest. Determine the kinetic energy lost by the system as a result of this collision.
 a. 20 J
  b. 15 J
  c. 30 J
  d. 25 J
  e. 5.0 J


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ryhom

  • Sr. Member
  • ****
  • Posts: 366
Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

A


Melani1276

  • Hero Member
  • *****
  • Posts: 516
Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


ryhom

  • Sr. Member
  • ****
  • Posts: 366
Reply #3 on: Jul 28, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Rhytidoplasty. This is a common form of plastic surgery in which the skin is pulled and sutured to d Rhytidoplasty. This is a common form of plastic surgery in which the skin is pulled and sutured to d
Example of an employee performance evaluation form. Example of an employee performance evaluation form.
Inline fuel filters are usually attached to the fuel line with screw clamps or threaded ... Inline fuel filters are usually attached to the fuel line with screw clamps or threaded ...
Visual tracking of a pendulum by a normal control subject (top) and three schizophrenics. (Adapted ... Visual tracking of a pendulum by a normal control subject (top) and three schizophrenics. (Adapted ...
How to quickly find the vertex of a quadratic equation that is in standard form How to quickly find the vertex of a quadratic equation that is in standard form
The B-form DNA double helix The B-form DNA double helix
Video: Polymerase chain reaction PCR - Animation

For a complete list of videos, visit our video library