« previous next »

Author Question: The work done by static friction can be: a. positive. b. negative. c. zero. d. Any of the ... (Read 57 times)

@Brianna17

  • Hero Member
  • *****
  • Posts: 550
on: Jul 28, 2018
The work done by static friction can be:
 a. positive.
  b. negative.
  c. zero.
  d. Any of the above.

Question 2

I use a rope 1.00-m-long to swing a 1.00-kg weight around my head. The tension in the rope is 20.0 N. In half a revolution how much work is done by the rope on the weight?
 a. 20.0 J
  b. 31.4 J
  c. 123 J
  d. 0


bob

  • Sr. Member
  • ****
  • Posts: 343
Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

@Brianna17

  • Hero Member
  • *****
  • Posts: 550
Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


bob

  • Sr. Member
  • ****
  • Posts: 343
Reply #3 on: Jul 28, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

Did you know?

People about to have surgery must tell their health care providers about all supplements they take.

Einstein - Science is the work of... Einstein - Science is the work of...
HIV-positive men with a high number of life stressors progress more quickly to AIDS than those with ... HIV-positive men with a high number of life stressors progress more quickly to AIDS than those with ...
Work and Gender: Women at Work in India Work and Gender: Women at Work in India
Knuckle friction between and over the shoulder blades. Superficial friction between shoulder blade ... Knuckle friction between and over the shoulder blades. Superficial friction between shoulder blade ...
Effects of Friction on Wind Effects of Friction on Wind
In the drawing of acetaldehyde, CH3CHO, the largest partial negative charge (-) occurs on In the drawing of acetaldehyde, CH3CHO, the largest partial negative charge (-) occurs on
Video: Hormones and the menstrual cycle Animation

For a complete list of videos, visit our video library