Answer: kinetic energy remains constant.
Explanation: The force on the charged particle is always perpendicular to the direction of its movement. Also, magnetic forces cause charged particles to change their direction of motion, but they do not change the speed of the particle. If the force is perpendicular to the motion, then no work is done. Hence magnetic forces do no work on charged particles and cannot increase their kinetic energy. Kinetic energy is therefore remain constant.
Answer:
[Speed] or [Velocity (if there is a direction)]
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The balloon explodes, because the pressure builds up inside and the air want to expand. Letter a)
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Answer:
0.480 seconds
Explanation:
The period is the time for 1 revolution. Writing a proportion:
14.4 s / 30.0 rev = t / 1 rev
t = 0.480 s
The period is 0.480 seconds.