Aforce is applied to the rim of a disk that can rotate like a merry-go-round, so as to change its angular velocity. its initial and final angular velocities, respectively, for four situations are the following.
(a) -2 rad/s, 5 rad/s;
(b) 2 rad/s, 5 rad/s;
(c) -2 rad/s, -5 rad/s; and
(d) 2 rad/s, -5 rad/s.

rank the situations according to the work done by the torque due to the force, greatest first.

The work done by the torque is the same in each case.

Explanation:

Work-Energy Theorem can be used to calculate the work done by the torque in each case.

Let's apply this theorem to each case:

As can be seen from the results, in each case the work done by the torque is the same.

two charges are fixed in place on the x-axis as shown. the charge at x = 0 is negative and has magnitude q = 2 μcoulombs (1 μcoulomb = 10-6 coulombs). the charge at x = d, (d = +12 cm), is positive and has magnitude q = 4 μcoulombs. find a point x = xo along the x-axis at which the electric field is zero.

total distance travelled = 60 miles

total time taken =1.5 hours

average speed = total distance / total time

60 / 1.5

= 40

therefore, average speed = 40 m/h

happy to

pls mark as brainliest