Physics, 03.11.2019 08:31 tiffxnnyyy
Let’s say a 0.001kg bullet moves with a speed of 1500 m/s. a pitcher claims he can throw a 0.15 kg baseball with as much momentum as that bullet. how fast would he have to throw the ball for this to be true?
Answers: 2
Physics, 21.06.2019 18:00
Aproton is projected toward a fixed nucleus of charge +ze with velocity vo. initially the two particles are very far apart. when the proton is a distance r from the nucleus its velocity has decreased to 1/2vo. how far from the nucleus will the proton be when its velocity has dropped to 1/4vo?
Answers: 3
Physics, 22.06.2019 12:10
Energy flows from the producer level to the level. is called
Answers: 1
Physics, 22.06.2019 13:40
Consider a double atwood machine constructed as follows: a mass 4m is suspended from a string that passes over a massless pulley on frictionless bearings. the other end of this string supports a second similar pulley, over which passes a second string supporting a mass of 3m at one end and m at the other. using two suitable generalized coordinates, set up the lagrangian and use the lagrange equations to find the acceleration of the mass 4m when the system is released. explain why the top pulley rotates even though it carries equal weights on each side.
Answers: 2
Let’s say a 0.001kg bullet moves with a speed of 1500 m/s. a pitcher claims he can throw a 0.15 kg b...
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