« previous next »

Author Question: At position A within a tube containing fluid that is moving with steady laminar flow, the speed of ... (Read 63 times)

joblessjake

  • Hero Member
  • *****
  • Posts: 555
on: Jul 29, 2018
At position A within a tube containing fluid that is moving with steady laminar flow, the speed of the fluid is 12.0 m/s and the tube has a diameter 12.00 cm.
 
  At position B, the speed of the fluid is 18.0 m/s and the tube has a diameter 6.00 cm. What is the ratio of the density of the fluid at position A to the density of the fluid at position B?
  A)
 
  3.00
 
  B)
 
  0.167
 
  C)
 
  0.375
 
  D)
 
  0.333
 
  E)
 
  0.750

Question 2

A camera lens has a focal length of 50.0 mm and an aperture setting of f/4.00. What is the aperture diameter of this lens?
 
  A) 14.2 mm B) 13.6 mm C) 10.1 mm D) 12.5 mm E) 15.0 mm


reversalruiz

  • Sr. Member
  • ****
  • Posts: 327
Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Neurological Flow Sheet, Including Glasgow Coma Scale Neurological Flow Sheet, Including Glasgow Coma Scale
Biological Information Flow Biological Information Flow
Body fluid compartments. Body fluid compartments.
Peak flow meter. Peak flow meter.
Blood Flow Through Capillaries Blood Flow Through Capillaries
Mechanisms involved in production of metabolic alkalosis due to loss of gastric fluid Mechanisms involved in production of metabolic alkalosis due to loss of gastric fluid
Video: Sister chromatids of a metaphase chromosome animation

For a complete list of videos, visit our video library