Author Question: Landslides, rock falls, and floods illustrate A) that Earth is made of rock. B) that Earth is ... (Read 179 times)

bobbysung

  • Hero Member
  • *****
  • Posts: 519
Landslides, rock falls, and floods illustrate
 
  A) that Earth is made of rock.
  B) that Earth is very old.
  C) that Earth is dynamic.
  D) that the crust of Earth is stationary and static.

Question 2

Why would a box on a shelf have a higher potential energy than that of a box on a lower shelf?
 
  A) The box on the higher shelf is heavier
  B) The box on the lower shelf was placed there after the higher box.
  C) The box on the higher shelf experiences less gravitational pull; with less gravitational pull comes more weight, thus more potential energy.
  D) It took more work to move the box to the high shelf than to the low shelf



31809pancho

  • Sr. Member
  • ****
  • Posts: 317
Answer to Question 1

Answer: C

Answer to Question 2

Answer: D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.

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?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

For a complete list of videos, visit our video library