Pat found a wooden box in his
grandparents’ garage. the top
was nailed shut. he used a
crowbar to pry off the top.
what type of simple machine
did pat use?

the duration of a photographic flash is related to an rc time constant, which is 0.100 μs for a certain camera.

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!