Two ice skaters, with masses of 69 kg and 57 kg , stand facing each other on a 18-m-wide frozen river. the skaters push off against each other, glide backward straight toward the river's edges, and reach the edges at exactly the same time. how far did the 73kg skater glide?
Answers: 3
Physics, 21.06.2019 22:30, nuhaminbruk
Ann walks 80 meters on a straight line 33 ∘ north of east starting at point 1. draw ann's path. represent ann's walk with a vector of length 80 meters. draw the vector starting at point 1. the length given in the display is in meters.
Answers: 1
Physics, 22.06.2019 11:00, amcdonald009
Which sound characteristic is not affected by the relative motion of an object
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Physics, 22.06.2019 15:30, tiffuuu
At 20∘c, the hole in an aluminum ring is 2.800 cm in diameter. you need to slip this ring over a steel shaft that has a room-temperature diameter of 2.804 cm . 1. to what common temperature should the ring and the shaft be heated so that the ring will just fit onto the shaft? coefficients of linear thermal expansion of steel and aluminum are 12×10−6 k−1 and23×10−6 k−1 respectively.
Answers: 1
Two ice skaters, with masses of 69 kg and 57 kg , stand facing each other on a 18-m-wide frozen rive...
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