« previous next »

Author Question: Solar energy a. is a recent invention b. has been used for a long time c. has not yet been ... (Read 40 times)

saraeharris

  • Hero Member
  • *****
  • Posts: 546
on: Jul 28, 2018
Solar energy
 a. is a recent invention
  b. has been used for a long time
  c. has not yet been successfully developed
  d. is indirectly the source of most of the energy we use

Question 2

Stepping barefoot off a rug onto a hardwood floor makes your feet feel cold. Why?
 a. The hardwood floor is at a lower temperature than the rug.
  b. The hardwood floor is at a lower temperature than your feet.
  c. The hardwood floor conducts heat away from your feet better than the rug.
  d. all of the above


millet

  • Sr. Member
  • ****
  • Posts: 354
Reply #1 on: Jul 28, 2018
Answer to Question 1

B, D

Answer to Question 2

B, C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

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.

Bonding Partners and Energy May Change in a Chemical Reaction Bonding Partners and Energy May Change in a Chemical Reaction
Brush off the back. Apply several long brushing strokes from head to hips to finish the session. Brush off the back. Apply several long brushing strokes from head to hips to finish the session.
Increased amounts of "screen time" are contributing to decreased amounts of physical ... Increased amounts of "screen time" are contributing to decreased amounts of physical ...
The Visible Spectrum of Electromagnetic Energy The Visible Spectrum of Electromagnetic Energy
Part of a Semantic Network in Long-Term Memory Part of a Semantic Network in Long-Term Memory
Disitive Time For Fish Disitive Time For Fish
Video: Hormonal regulation of blood pressure - RAA system

For a complete list of videos, visit our video library