A 2 kg stone thrown vertically from the top reached a height of 3 m and fell at the point of shooting. What is the potential energy of the stone at the start of the movement towards the starting location and at the highest point of the shot?

nah.   i'm just sleepy.

d) physical means can be used to separate the components of air.

the closer the planet is to the sun, the larger the gravity

as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

not copied too! hope this !

joke:

h o h o hope you have a merry christmas!