Physics, 18.06.2020 01:57 hebrew1148
A girl throws a ball of mass 0.80 kg against a wall. The ball strikes the wall horizontally with a speed of 25 m/s, and it bounces back with this same speed. The ball is in contact with the wall 0.050 s. What is the magnitude of the average force exerted on the wall by the ball
Answers: 2
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.
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Physics, 22.06.2019 10:00
Which atomic model was proposed as a result of j. j. thomson’s work?
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A girl throws a ball of mass 0.80 kg against a wall. The ball strikes the wall horizontally with a s...
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