2. Two blocks X and Y, of masses m and 3m (in kilograms) respectively, are accelerated along a
smooth horizontal surface by a force F(N) applied to
block X as shown. Calculate the magnitude of the
force exerted by block X on block y during this
acceleration
F
х
Y

Phase changes are chemical changes. true or false

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

Ametal ring 4.20 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpendicular to the magnetic field. these magnets produce an initial uniform field of 1.12 t between them but are gradually pulled apart, causing this field to remain uniform but decrease steadily at 0.240 t/s . (a) what is the magnitude of the electric field induced in the ring? (b) in which direction (clockwise or counterclockwise) does the current flow as viewed by someone on the south pole of the magnet?