« previous next »

Author Question: The work done by static friction can be: a. positive. b. negative. c. zero. d. Any of the ... (Read 26 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?

The FDA recognizes 118 routes of administration.

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Did you know?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

negative feedback negative feedback
Alzheimer’s Drugs Work by Intensifying the Effect of Acetylcholine at the Receptor Alzheimer’s Drugs Work by Intensifying the Effect of Acetylcholine at the Receptor
Negative feedback control of a regulated variable. Negative feedback control of a regulated variable.
Deep transverse friction (i.e., Cyriax friction) on an ankle ligament. Deep transverse friction (i.e., Cyriax friction) on an ankle ligament.
Negative Feedback Regulation of BP Negative Feedback Regulation of BP
Mechanisms of positive control of transcription Mechanisms of positive control of transcription
Video: Interspecific Competition Relationship - Competitive & Niche Differentiation

For a complete list of videos, visit our video library