Physics, 01.10.2019 18:00 liljohnsjs218
A2.00-m rod of negligible mass connects two very small objects at its ends. the mass of one object is 1.00 kg and the mass of the other is unknown. the center of mass of this system is on the rod a distance 1.60 m from the 1.00-kg mass object. what is the mass of the other object?
Answers: 3
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If an atom contains 11 protons in its nucleus, predict the element with the atomic number and electronic configuration. will the number of electrons remain the same during the chemical reaction in such an atom? explain.
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Physics, 22.06.2019 06:30
Alead ball is dropped into a lake from a diving board 5m above the water . it hits the water with a certain velocity and then sink with constant velocity in bottom . it reaches the bottom 5 second after it is dropped if g= 10m/s2 . find depth of the lake and average velocity of the ball ?
Answers: 1
Physics, 22.06.2019 17:40
Aspring is used to stop a 50-kg package which is moving down a 20º incline. the spring has a constant k = 30 kn/m and is held by cables so that it is initially compressed 50 mm. knowing that the velocity of the package is 2 m/s when it is 8 m from the spring and neglecting friction, determine the maximum additional deformation of the spring in bringing the package to rest.
Answers: 1
A2.00-m rod of negligible mass connects two very small objects at its ends. the mass of one object i...
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