Cal is viewing the Moon with his new telescope, using a 10-mm focal length eyepiece. For greater detail, he wishes to double the magnification of his telescope.
An eyepiece having which one of the following characteristics will accomplish this for him? A) 40 diopters
B) 8 mm
C) 12 mm
D) 200 diopters
E) 5 diopters
Question 2
A runner runs around a track consisting of two parallel lines 96 m long connected at the ends by two semicircles with a radius of 49 m. She completes one lap in 100 seconds. What is her average speed?
A) 2.5 m/s
B) 5.0 m/s
C) 10 m/s
D) 0 m/s
E) 1.3 m/s
A very high-resolution texture of the Moon, including a normal map
Mars from Hubble Space Telescope October 28, 2005 with dust storm visible.
Spiral Produced by twisting stresses that are spread along the length of a bone (note the break in t
Newtonian Telescope.
Einstein telescope.
Newton Telescope