A dart of 0.2-kg mass is loaded 0.05m into a vertically coiled spring (as shown on the right) and then is released. The spring has a stiffness constant k = 800 N/m and negligible mass. Initial energy stored in spring = J

Final gravitational potential energy of dartwhen spring is relaxed (with the dart still in contact with the spring) = J

Final kinetic energy of dart(at the moment it leaves the spring) = J

Final speed of dart(at the moment it leaves the spring) = m/s

Maximum height of the dart(include the 0.05 meters of the initial spring compression) = m

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.

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h o h o hope you have a merry christmas!

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2