4. A ladder consists of two wood segments of equal length and a crosspiece of negligible weight as shown. When the ladder is open, both segments make and angle of 60° with
the floor. Each segment is uniform but have different weights. Find the center for
gravity of the open ladder.
10.0 m
10.0 m
C
CG
1.0 m
1.0 m
d
Wy=10N
w-40N
60
60
10.0 m
B

Jessie ran 5000 meters from the cops and an average speed of 6 meters / second before he got caught . how long did he run?

Which configuration would produce an electric current? a) rotate a coil of copper wire between two magnets. b) connect a wire between a copper and zinc strip sitting in a beaker of water. c) connect a wire to the (+) positive end of a battery and the other end to a light bulb. d) connect a wire to the negative end of a battery and the other end to a light bulb.

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?