This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The weight of a body is the same, no matter where the body is located. What will be an ideal ... (Read 69 times)

Yi-Chen

  • Hero Member
  • *****
  • Posts: 550
on: Jul 28, 2018
The weight of a body is the same, no matter where the body is located.
 
  What will be an ideal response?

Question 2

Are solar cell efficiencies of over 30 realizable under realistic use conditions (include cost in these conditions)? Explain.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

stallen

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 28, 2018
Answer to Question 1

Not so. A body's mass is the same regardless of location, but the weight of a
body depends on its location.

Answer to Question 2

This is difficult to give a definitive answer to. In the past, the efficiencies at the
frontiers of research were higher and very expensive. As the frontier advanced, these
efficiencies were available for much more modest costs. At present, 30 efficiency solar
cells are quite expensive. If the trends of the efficiencies and costs up to the present
continues to hold, these solar cells will be much cheaper in the coming decades.


Yi-Chen

  • Hero Member
  • *****
  • Posts: 550
Reply #2 on: Jul 28, 2018
Thank you!


stallen

  • Sr. Member
  • ****
  • Posts: 336
Reply #3 on: Jul 28, 2018
Always glad to help...


« previous next »
 

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?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

Did you know?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

The average adult has about 21 square feet of skin.

Human body in anatomical ¬position Human body in anatomical ¬position
"Dark Matter" "Dark Matter"
a) Shift your weight at the end of your reach. b) Avoid overreaching. a) Shift your weight at the end of your reach. b) Avoid overreaching.
Examples of Body Regions and Their Location Examples of Body Regions and Their Location
Anterior and posterior body regions. Anterior and posterior body regions.
Your Body Is Mostly Water Your Body Is Mostly Water
Video: Calvin cycle (The light-independent reactions )

For a complete list of videos, visit our video library