Answer:
The ratio of the acceleration of the proton to that of the deuteron is 2
Explanation:
For a moving charge in magnetic field, the magnetic force is balanced by force due to its motion. So,

Acceleration of proton,
.........(1)
Acceleration of deuteron,
..........(2)
Since, a deuteron has the same charge as the proton but has twice its mass.
Dividing equation (1) and (2) we get :



So, the ratio of the acceleration of the proton to that of the deuteron is 2. Hence, the correct option is (a).
I think it would be d because the spring or whatever was pushing until it reached the farthest it could then it would pull down but idrk
Answer:
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Explanation:
hii! for PTM(physics and math tutor) you simply type in the search bar for example in. physics Units and measurements past papers.Then the first option would be PTM(physics and math tutor) and you click on it and it would give you on the left side Revision Notes, flashcards and practice questions. This site has helped me so much and I hope this helps you too (by the way PTM has for all 3 sciences and math too) just simply type the lesson name along with past paper and click on the first link and you'll get yourself your answers!!!! hopefully this helps!:))
Answer:
B) Periodic Motion
Explanation:
When a pendulum is friction-less, i.e there are no damping forces acting on it, its motion will be periodic, i.e it will bob up and down going from potential energy to kinetic energy and back. Thus, the motion of the pendulum can be best described by the term "period motion", hence choice B.
If however, forces do act on the pendulum, and if they acts as to damp the pendulum, it will oscillate less and less as time goes by, and eventually come to a stop (in the real world this damping force is usually air resistance ). And if the force acts in such a way that it increases the oscillations, the pendulum will swing higher and higher, and the system will go haywire! :)