Math Help: Cherry Blossom Height, Earth's Circumference & More!

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Homework Help Overview

The discussion revolves around various physics problems, including the height of a cherry blossom tree based on free fall time, comparisons of Earth's circumference measurements, angular velocity of Jupiter's orbit, and gravitational forces between a man and celestial bodies.

Discussion Character

  • Mixed

Approaches and Questions Raised

  • Participants explore calculations related to free fall and gravitational forces, question the relationship between historical and modern measurements of Earth's circumference, and consider angular velocity in different units.

Discussion Status

Some participants emphasize the importance of showing prior work before receiving assistance. There is a recognition of the context in which the original poster is seeking help, suggesting a non-academic setting.

Contextual Notes

The original poster indicates that the inquiry is part of a survey at work, not for a formal class, which may influence the nature of the questions and the urgency of the responses.

jacksthomas44
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A little help?

A cherry blossom is seen falling from a tree. An astronomer with a stop watch times the blossom to fall for 0.25 seconds, how tall is the tree from which it fell?

Erastosthenes has measured the difference between the shadow at alexandria and syene to be 6.5 degrees, how does this compare to the modern value of the circumference of earth? (which is 7 degrees)

Jupiter takes 687.0 days to orbit the sun, what is the angular velocity in degrees per day? per hour?

A 70 kg man is standing on Earth at a height of 2 meters. What is the gravitational force between the man ane earth? how does this compare with the garvitational force between the man and Jupiter?
 
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No help until you show what you have done yourself.
 
ahh, ok sorry wasnt sure how it works.. this is not for a class but an survey here at work.. thanks for the reply.
 
Where do you work? An observatory maybe?
 

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