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

Author Question: You and Al are both floating freely in your spaceships. Suppose that Al is moving away from you at ... (Read 52 times)

jparksx

  • Hero Member
  • *****
  • Posts: 570
on: Jul 27, 2018
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
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

D


jparksx

  • Hero Member
  • *****
  • Posts: 570
Reply #2 on: Jul 27, 2018
Thanks


diesoon

  • Sr. Member
  • ****
  • Posts: 353
Reply #3 on: Jul 27, 2018
Welcome :)


« previous next »
 

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Illustration of an embolus floating in an artery. The embolus will become lodged in a blood vessel t Illustration of an embolus floating in an artery. The embolus will become lodged in a blood vessel t
Explaining “Moving Continents”— The Theory of Plate Tectonics Explaining “Moving Continents”— The Theory of Plate Tectonics
Hold baby’s feet and bend legs, moving knees into the abdomen/chest and then straighten. Repeat ... Hold baby’s feet and bend legs, moving knees into the abdomen/chest and then straighten. Repeat ...
MOMENTUM AND IMP meteor(158 kg) is moving with a velocity of 127 m/s , and breaks into two ... MOMENTUM AND IMP meteor(158 kg) is moving with a velocity of 127 m/s , and breaks into two ...
physics question number 5 - moving conductors physics question number 5 - moving conductors
Floating rock illusion Floating rock illusion
Video: Mendel's Principles of Inheritance (Father of Genetics)

For a complete list of videos, visit our video library