Author Question: Which of the following energy transformations represents the operation of a wind turbine a device ... (Read 67 times)

krzymel

  • Hero Member
  • *****
  • Posts: 548
Which of the following energy transformations represents the operation of a wind turbine a device that uses the wind as an energy resource?
 
  A) Thermal E  Electric E B) Electric E  Kin E
  C) Grav E  Electric E D) Kin E  Electric E

Question 2

A plane has an airspeed of 142 m/s. A 30.0 m/s wind is blowing southward at the same time as the plane is flying. What must be the heading of the plane in order to move directly eastward relative to the ground?
 
  A) 77.8 north of east
  B) 55.3 north of east
  C) 12.2 north of east
  D) 11.9 north of east
  E) 78.1 north of east



peilian

  • Sr. Member
  • ****
  • Posts: 316
Answer to Question 1

D

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

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?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Did you know?

Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

For a complete list of videos, visit our video library