To explain retrograde motion as well as changes in planetary brightness, Ptolemy's model used ________
Fill in the blank(s) with correct word
epicycles
You might also like to view...
Two plane mirrors make an angle of with each other. A light ray enters the system and is reflected once off of each mirror. Through what angle is the ray turned?
A) 60° B) 90° C) 120° D) 150°
Hardness is a measure of the resistance of a material to _____________by an indenter.
Fill in the blank(s) with the appropriate word(s).
The time for the Moon to orbit the Earth, relative to the distant stars is the ________
Fill in the blank(s) with correct word
An airplane flies horizontally with a speed of 300 m/s at an altitude of 400 m. Assume that the ground is level. At what horizontal distance from a target must the pilot release a bomb so as to hit the target?
a. 3.0 km b. 2.4 km c. 3.3 km d. 2.7 km e. 1.7 km