A 10 kg bowling ball that is 20 meters above ground has more gravitational potential energy than a 1000 kg wrecking ball that's on the ground (height is Om), True or False?

True

Explanation:

The Gravitational potential energy is given by:

G = mgh

m = mass of body ; g = acceleration due to gravity ; h = height

G for a ball of mass 10kg ; height of 20 meters above the ground

G = 10kg * 9.8m/s² * 20m = 1960 kgm²/s²

G for a ball of mass 1000kg at height, 0 meters :

G = 1000 * 9.8 * 0 = 0

1960 > 0

Hence, Gravitational potential energy for 10kg ball at height 20m is greater Thammfor a 1000kg ball on the ground.

.) the observation by semmelweis that more mothers died of childbed fever when their doctors also worked in the morgue

explanation:

v=uf/(u-f)

= 5.-10/(5+10) convex lens has negative focal length