Question 6 of 10 If this vector were twice as long, what would be the coordinates of the tip?
O A. (1,-2)
O B. (-2, 1)
O C. (-4,2)
D. (2,-4)
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Study the following reaction carefully. what classification should this reaction have? 4al + 3o2 2al2o3synthesisdecompositionsingle replacementdouble displacement

Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 10.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.90 m/s; (b) he is then lifted at the constant speed of 4.90 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 68.0 kg rescue by the force lifting him during each stage?

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.