Physics, 12.03.2021 16:00, roxygirl8914
You are working as a physics lecture demonstration supervisor at a university. One of the professors wants you to build a device that will pass current in an axial direction along the metal sides of a soft drink can so that it will crush from the pinch effect. This effect is due to the fact that the small element of current in one section of the can is attracted to the current elements in all the other sections, because all the currents are in the same direction. The professor wants this demonstration to be used in a lecture on currents through plasmas, where the pinch effect is observed to cause particles of the plasma to bunch together. The professor has told you that a pinch effect pressure of 3.22 atm should crush the can. Before determining if the professor's request is feasible, you need to determine what axial current (in A) you need to pass through the 2.98 cm radius can. (Hint: Start by finding the pressure on a very thin strip of the can parallel to the axis.)
Answers: 3
Physics, 22.06.2019 09:00, keshho
When a bicycle coasts uphill, it moves slower and slower as it climbs. why? a. its kinetic energy is transforming into heat energy. b. its potential energy is transforming into kinetic energy. c. its kinetic energy is transforming into potential energy and heat energy. d. its potential energy is transforming into kinetic energy and heat energy.
Answers: 1
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
You are working as a physics lecture demonstration supervisor at a university. One of the professors...
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