« previous next »

Author Question: The length of a spaceship is 14 m when it is at rest. If the spaceship travels by you with a speed ... (Read 96 times)

bobbysung

  • Hero Member
  • *****
  • Posts: 519
on: Jul 29, 2018
The length of a spaceship is 14 m when it is at rest. If the spaceship travels by you with a speed of 0.80c, what length does it appear to you?
 
  A)
 
  6.3 m
  B)
 
  8.4 m
  C)
 
  18 m
  D)
 
  20 m
  E)
 
  22 m

Question 2

When a bimetallic strip is cooled, the strip will bend toward the side
 
  A)
 
  with the larger coefficient of linear expansion.
  B)
 
  with the smaller coefficient of linear expansion.
  C)
 
  with the higher temperature.
  D)
 
  with the lower temperature.
  E)
 
  depends of the method of heating


connor417

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

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?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Intussusception. A short length of small intestine has telescoped into itself. Intussusception. A short length of small intestine has telescoped into itself.
The world has been horrified recently at a U.S. Congress so polarized and paralyzed that it cannot p The world has been horrified recently at a U.S. Congress so polarized and paralyzed that it cannot p
A rapidly vibrating needle at idle that becomes steady as engine speed is increased indicates worn ... A rapidly vibrating needle at idle that becomes steady as engine speed is increased indicates worn ...
A steady needle reading that rises 2 or 3 inches Hg when the engine speed is increased slightly ... A steady needle reading that rises 2 or 3 inches Hg when the engine speed is increased slightly ...
Pinch the sternocleidomastoid (SCM) muscle at points along its length. Turn head to side to expose ... Pinch the sternocleidomastoid (SCM) muscle at points along its length. Turn head to side to expose ...
A pool player is attempting a fancy shot. He hits the cue ball giving it a speed of 5.57 m/s ... A pool player is attempting a fancy shot. He hits the cue ball giving it a speed of 5.57 m/s ...
Video: Mechanism of enzyme action

For a complete list of videos, visit our video library