Maaf sebelumnya ,bisa minta tolong kerjakan tugas saya? saya harus mengerjakan tugas fisika yang lain . tolong bantu 4 nomer saja .

Figure 9 on page 362 shows various motions of balls. the curved path followed by the yellow ball in b in picture b is result of a) inertia b) centripetal motion c) gravity and horizontal velocity d) linear motion

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.

During the experiment if you could triple the breakaway magnetic force with all other quantities left unchanged, what is the new value for the critical velocity if it was v0 (initial velocity), initially? (b) now if you halved the radius with all other quantities left unchanged, what is the new critical velocity if it was v0 (initial velocity), initially? (c) if during the experiment, critical velocity quadrupled with all other quantities left unchanged, what is the new breakaway force if its magnitude was initially f0,?