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

Author Question: A rope is lying on a table. You pick up one end and start raising it with a constant velocity. The ... (Read 45 times)

cdr_15

  • Hero Member
  • *****
  • Posts: 546
on: Jul 29, 2018
A rope is lying on a table. You pick up one end and start raising it with a constant velocity. The force you have to exert on the rope is
 
  A) equal to the weight of the portion of the rope that is not on the table.
  B) greater than the weight of the portion of the rope that is not on the table.
  C) less than the weight of the portion of the rope that is not on the table but not zero N.
  D) zero N.
  E) Cannot be determined without additional information.

Question 2

A puck with a mass m1 = 50.0 g moving at 1.00 m/s approaches a stationary puck with a mass m2 = 100 g on an air table and they undergo a two-dimensional elastic collision.
 
  After the collision, both pucks have identical speeds, but travel in different directions. What is the angle between the original and final paths of m1? A) 30.0
  B) 60.0
  C) 90.0
  D) 120
  E) 150


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

succesfull

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

C


cdr_15

  • Member
  • Posts: 546
Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

carlsona147

  • Member
  • Posts: 341
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Umberto Boccioni, Table + Bottle + House. Umberto Boccioni, Table + Bottle + House.
Fluidization - Data Table of experiment Fluidization - Data Table of experiment
Constant velocity versus positive velocity Constant velocity versus positive velocity
Layers of sheets and towels on the table for a body wrap. Layers of sheets and towels on the table for a body wrap.
The periodic table of the elements The periodic table of the elements
Table - Correlation Analysis Table - Correlation Analysis
Video: Carpal Tunnel Syndrome

For a complete list of videos, visit our video library