A 38kg child is at the top of a slide that is 2.1m tall (a) If there is no friction , how fast will they be moving when they reach the bottom of the slide ? (b) they lose 250.0J of energy to sound, heat, and friction, how fast will they be moving when they reach the bottom?

we can see how the government has failed them.

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!

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide