Physics, 18.10.2019 17:20, vanydparis
You lay a rectangular board on the horizontal floor and then tilt the board about one edge until it slopes at angle 0 with the horizontal. choose your origin at one of the two comers that touch the floor, the x axis pointing along the bottom edge of the board, the y axis pointing up the slope, and the z axis normal to the board. you now kick a frictionless puck that is resting at o so that it slides across the board with initial velocity (v_ox, v_oy,0). write down newton's second law using the given coordinates and then find how long the puck takes to return to the floor level and how far it is from o when it does so.
Answers: 3
Physics, 22.06.2019 19:40, xman32201
Currents in dc transmission lines can be 100 a or higher. some people are concerned that the electromagnetic fields from such lines near their homes could pose health dangers. for a line that has current 150 a and a height of 8.0 m above the ground, what magnetic field does the line produce at ground level? express your answer in teslas and as a percentage of the earthβs magnetic field, which is 0.50 g. is this value cause for worry?
Answers: 1
You lay a rectangular board on the horizontal floor and then tilt the board about one edge until it...
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