- Can you have negative position and positive velocity?

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A block of mass 5 kg is supported by a string. the tension in the string is? What is the measure of an interior angle of a 200-gon? Please help me with this Chemistry
Sate and illustrate Hundi's principle.? Prove or disprove that if m and n are integers such that mn =-1,then either m =1 and n=1 or else m =-1 and n=-1? What are quantum numbers?