Antarctica gets almost no precipitation ever. This is due to the air always being cold. Antarctica looks so snowy because on the rare occasions that snow does fall, it never melts because the temperature is so cold. Based on your knowledge of weather, can you explain why Antarctica almost never experiences precipitation? Hint - How does rain form?

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Visualize the problem and identify special cases first examine the problem by drawing a picture and visualizing the motion. apply newton's 2nd law, ∑f⃗ =ma⃗ , to each body in your mind. don't worry about which quantities are given. think about the forces on each body: how are these consistent with the direction of the acceleration for that body? can you think of any special cases that you can solve quickly now and use to test your understanding later? one special case in this problem is if m2=0, in which case block 1 would simply fall freely under the acceleration of gravity: a⃗ 1=−gj^.