Why does Ptolemy include epicycles in his model?

What will be an ideal response?


To account for retrograde motion and still preserve uniform circular motion.

Physics & Space Science

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It takes ________ astronauts to operate the Hubble Space Telescope

Fill in the blank(s) with correct word

Physics & Space Science

A hunter points a rifle horizontally and holds it 3.30 m above the ground. The bullet leaves the barrel at 325 m/s and experiences no significant air resistance. The acceleration due to gravity at this location is 9.80 m/s2

(a) How long does it take for the bullet to strike the ground? (b) How far horizontally does it travel?

Physics & Space Science

_________ is a form of electromagnetic radiation produced by rapidly moving electrons spiraling through magnetic fields

a. Lagrangian radiation b. Accretion c. Ultraviolet radiation d. Synchrotron radiation e. Infrared radiation

Physics & Space Science

Most of the information about the Moon's internal structure comes from ________ left on the lunar surface by Apollo astronauts

Fill in the blank(s) with correct word

Physics & Space Science