A5.2 g marble is fired vertically upward using a spring gun. the spring must be compressed 8.0 cm if the marble is to just reach a target 13 m above the marble's position on the compressed spring.
(a) what is the change in the gravitational potential energy of the marble-earth system during the 13 m ascent?
j

(b) what is the change in the elastic potential energy of the spring during its launch of the marble?
j

(c) what is the spring constant of the spring?
n/m

a) 0.66J

b) -0.66J

c) 206N/m

Explanation:

The change of gravitational potencial energy is given by:

Because of energy conservation the elastic potencial energy was converted completely to gravitational so:

The elastic potencial energy is given by:

gans

explanation:

vestigial organs (like your appendix) are organs that no longer serve a purpose.

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.