Physics, 17.02.2020 23:30, micahsocool23
Imagine a proton at rest a certain distance from a negatively charged plate. After being released it collides with the plate. Then imagine an electron at rest the same distance from a positively charged plate. Assume that the amount of net charge of the plates is the same in both cases. In which case will the moving particle have the greater speed when the collision occurs?
1. They will have the same speeds.
2. The proton will have the greater speed.
3. The electron will have the greater speed.
4. It cannot be determined.
Answers: 3
Physics, 22.06.2019 10:30, SauceyNaee
Aparticle moves in the xy plane with constant acceleration. at time zero, the particle is at x = 6 m, y = 8.5 m, and has velocity ~vo = (9 m/s) ˆı + (−2.5 m/s) ˆ . the acceleration is given by ~a = (4.5 m/s 2 ) ˆı + (3 m/s 2 ) ˆ . what is the x component of velocity after 3.5 s? answer in units of m/s.
Answers: 1
Physics, 22.06.2019 13:30, brsglover8355
6–43 a food department is kept at 2128c by a refrigerator in an environment at 308c. the total heat gain to the food department is estimated to be 3300 kj/h and the heat rejection in the condenser is 4800 kj/h. determine the power input to the compressor, in kw and the cop of the refrigerator.
Answers: 2
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