Author Question: We are warmed on a hot moist day because water molecules in the air striking our bodies A) ... (Read 45 times)

jasdeep_brar

  • Hero Member
  • *****
  • Posts: 569
We are warmed on a hot moist day because water molecules in the air striking our bodies
 
  A) transfer some of their kinetic energies to us.
  B) gain kinetic energy as they change state.
  C) form an insulating layer on our bodies.

Question 2

A level pipe contains a nonviscous, incompressible fluid with a density 1200 kg/m3 that is flowing steadily. At one position within the pipe, the pressure is 300 kPa and the speed of the flow is 20.0 m/s.
 
  At another position, the pressure is 200 kPa. What is the speed of the flow at this second position? A) 567 m/s
  B) 16.2 m/s
  C) 32.9 m/s
  D) 23.8 m/s
  E) 186 m/s



matt

  • Sr. Member
  • ****
  • Posts: 344
Answer to Question 1

Answer: A

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

For a complete list of videos, visit our video library