Anne is working on a research project that involves the use of a centrifuge. her samples must first experience an acceleration of 100 , but then, the acceleration must increase by a factor of six. by how much will the rotational speed have to increase? express your answer as a fraction of the initial rotation rate.

Two charged particles, q1 and q2, are located on the x-axis, with q1 at the origin and q2 initially at x1 = 12.2 mm. in this configuration, q1 exerts a repulsive force of 2.62 µn on q2. particle q2 is then moved to x2 = 18.0 mm. what is the force (magnitude and direction) that q2 exerts on q1 at this new location? (give the magnitude in µn.)