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

Author Question: How fast would a rocket ship have to move to contract to half of its proper length (as observed by a ... (Read 334 times)

beccaep

  • Hero Member
  • *****
  • Posts: 535
on: Jul 29, 2018
How fast would a rocket ship have to move to contract to half of its proper length (as observed by a stationary object)?
 
  A)
 
  0.25c
  B)
 
  0.50c
  C)
 
  0.65c
  D)
 
  0.78c
  E)
 
  0.87c

Question 2

A ball is thrown straight up with a speed of 30 m/s.
 
  (a.) How long does it take the ball to reach the maximum height?
  (b.) What is the maximum height reached by the ball?
  (c.) What is its speed after 4.2 s?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cassie_ragen

  • Sr. Member
  • ****
  • Posts: 347
Reply #1 on: Jul 29, 2018
Answer to Question 1

E

Answer to Question 2

(a.) 3.1 s
(b.) 46 m
(c.) 11 m/s


beccaep

  • Hero Member
  • *****
  • Posts: 535
Reply #2 on: Jul 29, 2018
Thank you!


cassie_ragen

  • Sr. Member
  • ****
  • Posts: 347
Reply #3 on: Jul 29, 2018
Always glad to help...


« previous next »
 

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

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?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

For ice massage, ice is frozen in a cylindrical container or a paper cup (A). The top half of the cu For ice massage, ice is frozen in a cylindrical container or a paper cup (A). The top half of the cu
Visual aids, such as proper walking shoes and a pedometer, or an illustration showing someone ... Visual aids, such as proper walking shoes and a pedometer, or an illustration showing someone ...
Notice how clean the engine appears. This is a testament of proper maintenance and regular ... Notice how clean the engine appears. This is a testament of proper maintenance and regular ...
An electrochemical cell is based on these two half-reactions An electrochemical cell is based on these two half-reactions
The forces of diffusion and electrostatic pressure. (a) In diffusion, solutes move from an area of h The forces of diffusion and electrostatic pressure. (a) In diffusion, solutes move from an area of h
Video: The Vestibular System

For a complete list of videos, visit our video library