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

Author Question: You and Al are both floating freely in your spaceships. Suppose that Al is moving away from you at ... (Read 63 times)

jparksx

  • Hero Member
  • *****
  • Posts: 570
You and Al are both floating freely in your spaceships. Suppose that Al is moving away from you at 85 km/hr. You throw a ball in his direction at a speed of 75 km/hr. According to Al, which of the following is going on?
 
  A) He sees you moving toward him at 85 km/hr and the ball moving toward him at 75 km/hr.
  B) He sees you moving away from him at 85 km/hr and the ball moving toward him at 10 km/hr.
  C) He agrees that he is moving at 85 km/hr and the ball is moving at 75 km/hr while you are standing still.
  D) He sees you moving away from him at 85 km/hr and the ball moving away from him at 10 km/hr.

Question 2

Which is the MOST important property of the element carbon that makes it ideal as a fundamental building block of biological molecules?
 
  A) it is a very stable element
  B) it is the only element capable of bonding to itself
  C) it is a common element
  D) it readily forms chemical bonds with itself and other elements, allowing a wide variety of complex molecules to form



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

diesoon

  • Sr. Member
  • ****
  • Posts: 353
Answer to Question 1

D

Answer to Question 2

D





 

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

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?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

For a complete list of videos, visit our video library