A mass m = 14 kg is pulled along a horizontal floor, with a coefficient of kinetic friction μk = 0.08, for a distance d = 7.8 m. then the mass is continued to be pulled up a frictionless incline that makes an angle θ = 30° with the horizontal. the entire time the massless rope used to pull the block is pulled parallel to the incline at an angle of θ = 30° (thus on the incline it is parallel to the surface) and has a tension t = 32 n. 1) what is the work done by tension before the block gets to the incline? j 2) what is the work done by friction as the block slides on the flat horizontal surface? j 3) what is the speed of the block right before it begins to travel up the incline? m/s 4) how far up the incline does the block travel before coming to rest? m 5) what is the work done by gravity as it comes to rest? j 6) during the entire process, the net work done on the block is: positive negative zero

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A boiling pot of water (the water travels in a current throughout the pot), a hot air balloon (hot air rises, making the balloon rise) , and cup of a steaming, hot liquid (hot air rises, creating steam) are all situations where convection occurs. 
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