Sue and jenny kick a soccer ball at exactly the same time. sue’s foot exerts a force of 49.9 n to the north. jenny’s foot exerts a force of 113 n to the east. a) what is the magnitude of the resultant force on the ball? answer in units of n. 010 (part 2 of 2) 10.0 points
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Physics, 22.06.2019 08:00
5g of ammonium nitrate was dissolved in 60g of water in an insulated container. the temperature at the start of the reaction was 23.0°c and at the end it was 19.0°c. calculate the energy absorbed by the reaction.
Answers: 3
Physics, 22.06.2019 15:30
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
Physics, 22.06.2019 17:20
Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made.
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Sue and jenny kick a soccer ball at exactly the same time. sue’s foot exerts a force of 49.9 n to th...
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