If you drop a rock from a height of 10 m, it accelerates at 9.8 m/s² and strikes the ground
1.42857 s later.
If you drop the same rock from half that
height, what will be its acceleration?

What are the north and south poles of a solenoid change with?

Patricia is trying to compare the average rainfall of new york to that of arizona. a comparison between these two states for the months of july through september would best be measured in

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.)