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shhhhhh
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C B D
Its Onomatopoeia because he is writing the sound of the rapping at his door
Mg + heat + O > MgO
A) T = W/cos(q) (b/c Tcos(q) = W) B) F = W*tan(q) (b/c F = Tsin(q) C) T = W*cos(q) (Find T so that acceleration is tangential to the circle) D) Not sure but if you want it in terms of W and q I used potential and kinetic energy in terms of L and then