This topic contains a solution. Click here to go to the answer

Author Question: Give an example in which kinetic energy can be converted to thermal energy. What will be an ideal ... (Read 72 times)

burchfield96

  • Hero Member
  • *****
  • Posts: 610
Give an example in which kinetic energy can be converted to thermal energy.
 
  What will be an ideal response?

Question 2

The reason that most extrasolar planets discovered by the Doppler technique are found close to their parent stars is
 
  A) the closer to a star, the hotter and therefore brighter the planet is.
  B) more of the starlight is blocked by the planet when it transits the star.
  C) planets that are close to a star are heated up and therefore larger.
  D) they transit more frequently, and have thus been more likely to be detected in the short time we have been searching for them.
  E) the wavelength shift of the star's spectrum is larger.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Tabitha_2016

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

The brakes on a car: applying the brakes on a car slows it down through friction of the brake pads with the brake drums. The car slows down, losing kinetic energy, and the pads warm up, gaining thermal energy (try touching your wheels-but be careful because they can become very hot-after using your brakes for a long time, e.g.,going down a steep mountain road).

Answer to Question 2

E





 

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

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?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

Did you know?

Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

For a complete list of videos, visit our video library