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

Author Question: A spaceship captain lands on an unknown planet. Before venturing forth, he needs to find out the ... (Read 97 times)

kamilo84

  • Sr. Member
  • ****
  • Posts: 495
on: Jul 29, 2018
A spaceship captain lands on an unknown planet. Before venturing forth, he needs to find out the free fall acceleration on that planet.
 
  All he has available to him is some thin light string, a stopwatch, and a small 2.75-kg metal ball (it was a rough landing). So he lets the ball swing from a 1.5-m length of the string, starting at rest, and measures that it takes 1.9 s for it to swing from the place where he released it to the place where it first stops as it reverses direction. What is the free fall acceleration on this planet?

Question 2

Tarzan swings back and forth on a long vine. His friend Jane notices in amazement that he makes 30 complete swings in 2.4 minutes.
 
  (a) What is the frequency (in hertz) of Tarzan's swing?
  (b) How long is the vine he is using?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

amcvicar

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Jul 29, 2018
Answer to Question 1

4.1 m/s2

Answer to Question 2

(a) 0.21 Hz (b) 5.7 m


kamilo84

  • Member
  • Posts: 495
Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review

Liddy

  • Member
  • Posts: 342
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

How to find the distance of any line segment How to find the distance of any line segment
How to find the second derivative of a function How to find the second derivative of a function
How to find the definite integral using the fundamental theorem of calculus (Part 1) How to find the definite integral using the fundamental theorem of calculus (Part 1)
How to find the average value of a function (Part 2) How to find the average value of a function (Part 2)
How to find the antiderivative of double-angle trigonometric functions, sin(2x), cos(2x), etc. How to find the antiderivative of double-angle trigonometric functions, sin(2x), cos(2x), etc.
Find the measure of angle L to the nearest degree Find the measure of angle L to the nearest degree
Video: Pores and Ion Channels

For a complete list of videos, visit our video library