A 70kg skier is sliding down a 20-degree slope. There are 15N of drag acting on the skier and there is a .09 coefficient of dynamic friction between the skis and the surface. Calculate (1) the
friction between the skis and the surface and (2) the skier's acceleration down the slope. (8
points)

0.863333

86%

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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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joke:

h o h o hope you have a merry christmas!

the answer is the first electromagnet (a). this is because it has more coils around the ferromagnetic material. increasing the number of coils increases the surface area in which the metal interacts with the current in the coil. this enables more atoms in the metal to become aligned hence becoming more magnetized.